diff --git a/package-lock.json b/package-lock.json
index db084cc..abd2db3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,6 +13,7 @@
         "@radix-ui/react-avatar": "^1.1.11",
         "@radix-ui/react-checkbox": "^1.3.3",
         "@radix-ui/react-collapsible": "^1.1.12",
+        "@radix-ui/react-context-menu": "^2.2.16",
         "@radix-ui/react-dialog": "^1.1.15",
         "@radix-ui/react-dropdown-menu": "^2.1.16",
         "@radix-ui/react-hover-card": "^1.1.15",
@@ -2257,6 +2258,75 @@
         }
       }
     },
+    "node_modules/@radix-ui/react-context-menu": {
+      "version": "2.2.16",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-context-menu/-/react-context-menu-2.2.16.tgz",
+      "integrity": "sha512-O8morBEW+HsVG28gYDZPTrT9UUovQUlJue5YO836tiTJhuIWBm/zQHc7j388sHWtdH/xUZurK9olD2+pcqx5ww==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/primitive": "1.1.3",
+        "@radix-ui/react-context": "1.1.2",
+        "@radix-ui/react-menu": "2.1.16",
+        "@radix-ui/react-primitive": "2.1.3",
+        "@radix-ui/react-use-callback-ref": "1.1.1",
+        "@radix-ui/react-use-controllable-state": "1.2.2"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@radix-ui/react-context-menu/node_modules/@radix-ui/react-primitive": {
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-primitive/-/react-primitive-2.1.3.tgz",
+      "integrity": "sha512-m9gTwRkhy2lvCPe6QJp4d3G1TYEUHn/FzJUtq9MjH46an1wJU+GdoGC5VLof8RX8Ft/DlpshApkhswDLZzHIcQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/react-slot": "1.2.3"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@radix-ui/react-context-menu/node_modules/@radix-ui/react-slot": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-slot/-/react-slot-1.2.3.tgz",
+      "integrity": "sha512-aeNmHnBxbi2St0au6VBVC7JXFlhLlOnvIIlePNniyUNAClzmtAUEY8/pBiK3iHjufOlwA+c20/8jngo7xcrg8A==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/react-compose-refs": "1.1.2"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@radix-ui/react-dialog": {
       "version": "1.1.15",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-dialog/-/react-dialog-1.1.15.tgz",
diff --git a/package.json b/package.json
index bda4b9b..494749e 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,7 @@
     "@radix-ui/react-avatar": "^1.1.11",
     "@radix-ui/react-checkbox": "^1.3.3",
     "@radix-ui/react-collapsible": "^1.1.12",
+    "@radix-ui/react-context-menu": "^2.2.16",
     "@radix-ui/react-dialog": "^1.1.15",
     "@radix-ui/react-dropdown-menu": "^2.1.16",
     "@radix-ui/react-hover-card": "^1.1.15",
diff --git a/src/components/ChatViewer.tsx b/src/components/ChatViewer.tsx
index 6749b5f..6f3a1ab 100644
--- a/src/components/ChatViewer.tsx
+++ b/src/components/ChatViewer.tsx
@@ -34,6 +34,7 @@ import { ReplyPreview } from "./chat/ReplyPreview";
 import { MembersDropdown } from "./chat/MembersDropdown";
 import { RelaysDropdown } from "./chat/RelaysDropdown";
 import { StatusBadge } from "./live/StatusBadge";
+import { ChatMessageContextMenu } from "./chat/ChatMessageContextMenu";
 import { useGrimoire } from "@/core/state";
 import { Button } from "./ui/button";
 import {
@@ -279,8 +280,8 @@ const MessageItem = memo(function MessageItem({
     );
   }
 
-  // Regular user messages
-  return (
+  // Regular user messages - wrap in context menu if event exists
+  const messageContent = (
     <div className="group flex items-start hover:bg-muted/50 px-3">
       <div className="flex-1 min-w-0">
         <div className="flex items-center gap-2">
@@ -319,6 +320,20 @@ const MessageItem = memo(function MessageItem({
       </div>
     </div>
   );
+
+  // Wrap in context menu if event exists
+  if (message.event) {
+    return (
+      <ChatMessageContextMenu
+        event={message.event}
+        onReply={canReply && onReply ? () => onReply(message.id) : undefined}
+      >
+        {messageContent}
+      </ChatMessageContextMenu>
+    );
+  }
+
+  return messageContent;
 });
 
 /**
diff --git a/src/components/chat/ChatMessageContextMenu.tsx b/src/components/chat/ChatMessageContextMenu.tsx
new file mode 100644
index 0000000..27740c9
--- /dev/null
+++ b/src/components/chat/ChatMessageContextMenu.tsx
@@ -0,0 +1,165 @@
+import { useState } from "react";
+import { NostrEvent } from "@/types/nostr";
+import {
+  ContextMenu,
+  ContextMenuContent,
+  ContextMenuItem,
+  ContextMenuLabel,
+  ContextMenuSeparator,
+  ContextMenuTrigger,
+} from "@/components/ui/context-menu";
+import {
+  Copy,
+  Check,
+  FileJson,
+  ExternalLink,
+  Reply,
+  MessageSquare,
+} from "lucide-react";
+import { useGrimoire } from "@/core/state";
+import { useCopy } from "@/hooks/useCopy";
+import { JsonViewer } from "@/components/JsonViewer";
+import { KindBadge } from "@/components/KindBadge";
+import { nip19 } from "nostr-tools";
+import { getTagValue } from "applesauce-core/helpers";
+import { getSeenRelays } from "applesauce-core/helpers/relays";
+import { isAddressableKind } from "@/lib/nostr-kinds";
+
+interface ChatMessageContextMenuProps {
+  event: NostrEvent;
+  children: React.ReactNode;
+  onReply?: () => void;
+}
+
+/**
+ * Context menu for chat messages
+ * Provides right-click/long-press actions for chat messages:
+ * - Reply to message
+ * - Copy message text
+ * - Open event detail
+ * - Copy event ID (nevent/naddr)
+ * - View raw JSON
+ */
+export function ChatMessageContextMenu({
+  event,
+  children,
+  onReply,
+}: ChatMessageContextMenuProps) {
+  const { addWindow } = useGrimoire();
+  const { copy, copied } = useCopy();
+  const [jsonDialogOpen, setJsonDialogOpen] = useState(false);
+
+  const openEventDetail = () => {
+    let pointer;
+    // For replaceable/parameterized replaceable events, use AddressPointer
+    if (isAddressableKind(event.kind)) {
+      // Find d-tag for identifier
+      const dTag = getTagValue(event, "d") || "";
+      pointer = {
+        kind: event.kind,
+        pubkey: event.pubkey,
+        identifier: dTag,
+      };
+    } else {
+      // For regular events, use EventPointer
+      pointer = {
+        id: event.id,
+      };
+    }
+
+    addWindow("open", { pointer });
+  };
+
+  const copyEventId = () => {
+    // Get relay hints from where the event has been seen
+    const seenRelaysSet = getSeenRelays(event);
+    const relays = seenRelaysSet ? Array.from(seenRelaysSet) : [];
+
+    // For replaceable/parameterized replaceable events, encode as naddr
+    if (isAddressableKind(event.kind)) {
+      // Find d-tag for identifier
+      const dTag = getTagValue(event, "d") || "";
+      const naddr = nip19.naddrEncode({
+        kind: event.kind,
+        pubkey: event.pubkey,
+        identifier: dTag,
+        relays: relays,
+      });
+      copy(naddr);
+    } else {
+      // For regular events, encode as nevent
+      const nevent = nip19.neventEncode({
+        id: event.id,
+        author: event.pubkey,
+        relays: relays,
+      });
+      copy(nevent);
+    }
+  };
+
+  const copyMessageText = () => {
+    copy(event.content);
+  };
+
+  const viewEventJson = () => {
+    setJsonDialogOpen(true);
+  };
+
+  return (
+    <>
+      <ContextMenu>
+        <ContextMenuTrigger asChild>{children}</ContextMenuTrigger>
+        <ContextMenuContent className="w-56">
+          <ContextMenuLabel>
+            <div className="flex flex-row items-center gap-4">
+              <KindBadge kind={event.kind} variant="compact" />
+              <KindBadge
+                kind={event.kind}
+                showName
+                showKindNumber
+                showIcon={false}
+              />
+            </div>
+          </ContextMenuLabel>
+          <ContextMenuSeparator />
+          {onReply && (
+            <>
+              <ContextMenuItem onClick={onReply}>
+                <Reply className="size-4 mr-2" />
+                Reply
+              </ContextMenuItem>
+              <ContextMenuSeparator />
+            </>
+          )}
+          <ContextMenuItem onClick={copyMessageText}>
+            <MessageSquare className="size-4 mr-2" />
+            Copy Text
+          </ContextMenuItem>
+          <ContextMenuSeparator />
+          <ContextMenuItem onClick={openEventDetail}>
+            <ExternalLink className="size-4 mr-2" />
+            Open Event
+          </ContextMenuItem>
+          <ContextMenuItem onClick={copyEventId}>
+            {copied ? (
+              <Check className="size-4 mr-2 text-green-500" />
+            ) : (
+              <Copy className="size-4 mr-2" />
+            )}
+            {copied ? "Copied!" : "Copy ID"}
+          </ContextMenuItem>
+          <ContextMenuItem onClick={viewEventJson}>
+            <FileJson className="size-4 mr-2" />
+            View JSON
+          </ContextMenuItem>
+        </ContextMenuContent>
+      </ContextMenu>
+      <JsonViewer
+        data={event}
+        open={jsonDialogOpen}
+        onOpenChange={setJsonDialogOpen}
+        title={`Event ${event.id.slice(0, 8)}... - Raw JSON`}
+      />
+    </>
+  );
+}
diff --git a/src/components/ui/context-menu.tsx b/src/components/ui/context-menu.tsx
new file mode 100644
index 0000000..75ace46
--- /dev/null
+++ b/src/components/ui/context-menu.tsx
@@ -0,0 +1,198 @@
+import * as React from "react";
+import * as ContextMenuPrimitive from "@radix-ui/react-context-menu";
+import { Check, ChevronRight, Circle } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+
+const ContextMenu = ContextMenuPrimitive.Root;
+
+const ContextMenuTrigger = ContextMenuPrimitive.Trigger;
+
+const ContextMenuGroup = ContextMenuPrimitive.Group;
+
+const ContextMenuPortal = ContextMenuPrimitive.Portal;
+
+const ContextMenuSub = ContextMenuPrimitive.Sub;
+
+const ContextMenuRadioGroup = ContextMenuPrimitive.RadioGroup;
+
+const ContextMenuSubTrigger = React.forwardRef<
+  React.ElementRef<typeof ContextMenuPrimitive.SubTrigger>,
+  React.ComponentPropsWithoutRef<typeof ContextMenuPrimitive.SubTrigger> & {
+    inset?: boolean;
+  }
+>(({ className, inset, children, ...props }, ref) => (
+  <ContextMenuPrimitive.SubTrigger
+    ref={ref}
+    className={cn(
+      "flex cursor-default select-none items-center rounded-sm px-2 py-1.5 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[state=open]:bg-accent data-[state=open]:text-accent-foreground",
+      inset && "pl-8",
+      className,
+    )}
+    {...props}
+  >
+    {children}
+    <ChevronRight className="ml-auto h-4 w-4" />
+  </ContextMenuPrimitive.SubTrigger>
+));
+ContextMenuSubTrigger.displayName = ContextMenuPrimitive.SubTrigger.displayName;
+
+const ContextMenuSubContent = React.forwardRef<
+  React.ElementRef<typeof ContextMenuPrimitive.SubContent>,
+  React.ComponentPropsWithoutRef<typeof ContextMenuPrimitive.SubContent>
+>(({ className, ...props }, ref) => (
+  <ContextMenuPrimitive.SubContent
+    ref={ref}
+    className={cn(
+      "z-50 min-w-[8rem] overflow-hidden rounded-md border bg-popover p-1 text-popover-foreground shadow-md data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2",
+      className,
+    )}
+    {...props}
+  />
+));
+ContextMenuSubContent.displayName = ContextMenuPrimitive.SubContent.displayName;
+
+const ContextMenuContent = React.forwardRef<
+  React.ElementRef<typeof ContextMenuPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof ContextMenuPrimitive.Content>
+>(({ className, ...props }, ref) => (
+  <ContextMenuPrimitive.Portal>
+    <ContextMenuPrimitive.Content
+      ref={ref}
+      className={cn(
+        "z-50 min-w-[8rem] overflow-hidden rounded-md border bg-popover p-1 text-popover-foreground shadow-md animate-in fade-in-80 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2",
+        className,
+      )}
+      {...props}
+    />
+  </ContextMenuPrimitive.Portal>
+));
+ContextMenuContent.displayName = ContextMenuPrimitive.Content.displayName;
+
+const ContextMenuItem = React.forwardRef<
+  React.ElementRef<typeof ContextMenuPrimitive.Item>,
+  React.ComponentPropsWithoutRef<typeof ContextMenuPrimitive.Item> & {
+    inset?: boolean;
+  }
+>(({ className, inset, ...props }, ref) => (
+  <ContextMenuPrimitive.Item
+    ref={ref}
+    className={cn(
+      "relative flex cursor-default select-none items-center rounded-sm px-2 py-1.5 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
+      inset && "pl-8",
+      className,
+    )}
+    {...props}
+  />
+));
+ContextMenuItem.displayName = ContextMenuPrimitive.Item.displayName;
+
+const ContextMenuCheckboxItem = React.forwardRef<
+  React.ElementRef<typeof ContextMenuPrimitive.CheckboxItem>,
+  React.ComponentPropsWithoutRef<typeof ContextMenuPrimitive.CheckboxItem>
+>(({ className, children, checked, ...props }, ref) => (
+  <ContextMenuPrimitive.CheckboxItem
+    ref={ref}
+    className={cn(
+      "relative flex cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
+      className,
+    )}
+    checked={checked}
+    {...props}
+  >
+    <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
+      <ContextMenuPrimitive.ItemIndicator>
+        <Check className="h-4 w-4" />
+      </ContextMenuPrimitive.ItemIndicator>
+    </span>
+    {children}
+  </ContextMenuPrimitive.CheckboxItem>
+));
+ContextMenuCheckboxItem.displayName =
+  ContextMenuPrimitive.CheckboxItem.displayName;
+
+const ContextMenuRadioItem = React.forwardRef<
+  React.ElementRef<typeof ContextMenuPrimitive.RadioItem>,
+  React.ComponentPropsWithoutRef<typeof ContextMenuPrimitive.RadioItem>
+>(({ className, children, ...props }, ref) => (
+  <ContextMenuPrimitive.RadioItem
+    ref={ref}
+    className={cn(
+      "relative flex cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
+      className,
+    )}
+    {...props}
+  >
+    <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
+      <ContextMenuPrimitive.ItemIndicator>
+        <Circle className="h-2 w-2 fill-current" />
+      </ContextMenuPrimitive.ItemIndicator>
+    </span>
+    {children}
+  </ContextMenuPrimitive.RadioItem>
+));
+ContextMenuRadioItem.displayName = ContextMenuPrimitive.RadioItem.displayName;
+
+const ContextMenuLabel = React.forwardRef<
+  React.ElementRef<typeof ContextMenuPrimitive.Label>,
+  React.ComponentPropsWithoutRef<typeof ContextMenuPrimitive.Label> & {
+    inset?: boolean;
+  }
+>(({ className, inset, ...props }, ref) => (
+  <ContextMenuPrimitive.Label
+    ref={ref}
+    className={cn(
+      "px-2 py-1.5 text-sm font-semibold text-foreground",
+      inset && "pl-8",
+      className,
+    )}
+    {...props}
+  />
+));
+ContextMenuLabel.displayName = ContextMenuPrimitive.Label.displayName;
+
+const ContextMenuSeparator = React.forwardRef<
+  React.ElementRef<typeof ContextMenuPrimitive.Separator>,
+  React.ComponentPropsWithoutRef<typeof ContextMenuPrimitive.Separator>
+>(({ className, ...props }, ref) => (
+  <ContextMenuPrimitive.Separator
+    ref={ref}
+    className={cn("-mx-1 my-1 h-px bg-border", className)}
+    {...props}
+  />
+));
+ContextMenuSeparator.displayName = ContextMenuPrimitive.Separator.displayName;
+
+const ContextMenuShortcut = ({
+  className,
+  ...props
+}: React.HTMLAttributes<HTMLSpanElement>) => {
+  return (
+    <span
+      className={cn(
+        "ml-auto text-xs tracking-widest text-muted-foreground",
+        className,
+      )}
+      {...props}
+    />
+  );
+};
+ContextMenuShortcut.displayName = "ContextMenuShortcut";
+
+export {
+  ContextMenu,
+  ContextMenuTrigger,
+  ContextMenuContent,
+  ContextMenuItem,
+  ContextMenuCheckboxItem,
+  ContextMenuRadioItem,
+  ContextMenuLabel,
+  ContextMenuSeparator,
+  ContextMenuShortcut,
+  ContextMenuGroup,
+  ContextMenuPortal,
+  ContextMenuSub,
+  ContextMenuSubContent,
+  ContextMenuSubTrigger,
+  ContextMenuRadioGroup,
+};