diff --git a/frontend/src/components/git/ForgejoIssueDetailDialog.tsx b/frontend/src/components/git/ForgejoIssueDetailDialog.tsx
index 872cb88..df37cba 100644
--- a/frontend/src/components/git/ForgejoIssueDetailDialog.tsx
+++ b/frontend/src/components/git/ForgejoIssueDetailDialog.tsx
@@ -2,7 +2,7 @@
 
 import { useEffect, useMemo, useState } from "react";
 
-import { ExternalLink, Loader2, MessageSquarePlus, Pencil } from "lucide-react";
+import { ExternalLink, Loader2, MessageSquarePlus, Pencil, XCircle } from "lucide-react";
 
 import {
   Dialog,
@@ -20,8 +20,9 @@ import {
   type ForgejoIssue,
   type ForgejoIssueDetail,
 } from "@/lib/api-forgejo";
-import { PostForgejoCommentDialog } from "@/components/git/PostForgejoCommentDialog";
+import { CloseForgejoIssueDialog } from "@/components/git/CloseForgejoIssueDialog";
 import { EditForgejoIssueDialog } from "@/components/git/EditForgejoIssueDialog";
+import { PostForgejoCommentDialog } from "@/components/git/PostForgejoCommentDialog";
 
 type ForgejoIssueDetailDialogProps = {
   issue: ForgejoIssue | null;
@@ -29,6 +30,7 @@ type ForgejoIssueDetailDialogProps = {
   open: boolean;
   onOpenChange: (open: boolean) => void;
   onRefresh?: () => void;
+  canClose?: boolean;
 };
 
 const formatDateTime = (value: string | null | undefined): string => {
@@ -58,6 +60,7 @@ export function ForgejoIssueDetailDialog({
   open,
   onOpenChange,
   onRefresh,
+  canClose = false,
 }: ForgejoIssueDetailDialogProps) {
   const [detail, setDetail] = useState<ForgejoIssueDetail | null>(null);
   const [isLoading, setIsLoading] = useState(false);
@@ -66,6 +69,7 @@ export function ForgejoIssueDetailDialog({
 
   const [isCommentDialogOpen, setIsCommentDialogOpen] = useState(false);
   const [isEditDialogOpen, setIsEditDialogOpen] = useState(false);
+  const [isCloseIssueDialogOpen, setIsCloseIssueDialogOpen] = useState(false);
 
   const loadDetail = (id: string) => {
     let cancelled = false;
@@ -113,6 +117,12 @@ export function ForgejoIssueDetailDialog({
   const body = detail?.body ?? issue.body ?? issue.body_preview ?? "";
   const stateVariant = active.state === "open" ? "success" : "default";
 
+  const handleCloseIssueSuccess = () => {
+    if (detail) setDetail({ ...detail, state: "closed" });
+    if (issue) loadDetail(issue.id);
+    onRefresh?.();
+  };
+
   const handleCommentSuccess = () => {
     if (issue) loadDetail(issue.id);
     onRefresh?.();
@@ -179,6 +189,17 @@ export function ForgejoIssueDetailDialog({
                   <MessageSquarePlus className="h-3.5 w-3.5" />
                   Comment
                 </Button>
+                {canClose && active.state === "open" ? (
+                  <Button
+                    variant="outline"
+                    size="sm"
+                    className="h-9 gap-2 rounded-xl border-[color:rgba(248,113,113,0.45)] px-3 text-xs font-semibold text-[color:var(--danger)] hover:bg-[color:rgba(248,113,113,0.08)]"
+                    onClick={() => setIsCloseIssueDialogOpen(true)}
+                  >
+                    <XCircle className="h-3.5 w-3.5" />
+                    Close Issue
+                  </Button>
+                ) : null}
                 <a
                   href={active.html_url}
                   target="_blank"
@@ -357,12 +378,20 @@ export function ForgejoIssueDetailDialog({
 
           <div className="flex justify-end">
             <Button variant="outline" onClick={() => onOpenChange(false)}>
-              Close
+              Dismiss
             </Button>
           </div>
         </DialogContent>
       </Dialog>
 
+      <CloseForgejoIssueDialog
+        issue={issue}
+        repositoryName={repositoryName}
+        open={isCloseIssueDialogOpen}
+        onOpenChange={setIsCloseIssueDialogOpen}
+        onCloseSuccess={handleCloseIssueSuccess}
+      />
+
       <PostForgejoCommentDialog
         issue={issue}
         repositoryName={repositoryName}
diff --git a/frontend/src/components/git/ForgejoIssuesTable.tsx b/frontend/src/components/git/ForgejoIssuesTable.tsx
index cfeb680..9d68933 100644
--- a/frontend/src/components/git/ForgejoIssuesTable.tsx
+++ b/frontend/src/components/git/ForgejoIssuesTable.tsx
@@ -421,6 +421,7 @@ export function ForgejoIssuesTable({
           }
         }}
         onRefresh={onRefresh}
+        canClose={canClose}
       />
       <EditForgejoIssueDialog
         issue={issueToEdit}