diff --git a/frontend/src/components/source/SourceDetailContent.tsx b/frontend/src/components/source/SourceDetailContent.tsx
index 7e966c5..8757141 100644
--- a/frontend/src/components/source/SourceDetailContent.tsx
+++ b/frontend/src/components/source/SourceDetailContent.tsx
@@ -24,6 +24,16 @@ import {
   DropdownMenuSeparator,
   DropdownMenuTrigger,
 } from '@/components/ui/dropdown-menu'
+import {
+  AlertDialog,
+  AlertDialogAction,
+  AlertDialogCancel,
+  AlertDialogContent,
+  AlertDialogDescription,
+  AlertDialogFooter,
+  AlertDialogHeader,
+  AlertDialogTitle,
+} from '@/components/ui/alert-dialog'
 import {
   Select,
   SelectContent,
@@ -80,6 +90,8 @@ export function SourceDetailContent({
   const [isDownloadingFile, setIsDownloadingFile] = useState(false)
   const [fileAvailable, setFileAvailable] = useState<boolean | null>(null)
   const [selectedInsight, setSelectedInsight] = useState<SourceInsightResponse | null>(null)
+  const [insightToDelete, setInsightToDelete] = useState<string | null>(null)
+  const [deletingInsight, setDeletingInsight] = useState(false)
 
   const fetchSource = useCallback(async () => {
     try {
@@ -152,6 +164,24 @@ export function SourceDetailContent({
     }
   }
 
+  const handleDeleteInsight = async (e?: React.MouseEvent) => {
+    e?.preventDefault()
+    if (!insightToDelete) return
+
+    try {
+      setDeletingInsight(true)
+      await insightsApi.delete(insightToDelete)
+      toast.success('Insight deleted successfully')
+      setInsightToDelete(null)
+      await fetchInsights()
+    } catch (err) {
+      console.error('Failed to delete insight:', err)
+      toast.error('Failed to delete insight')
+    } finally {
+      setDeletingInsight(false)
+    }
+  }
+
   const handleUpdateTitle = async (title: string) => {
     if (!source || title === source.title) return
 
@@ -573,10 +603,18 @@ export function SourceDetailContent({
                         <p className="mt-2 text-sm text-muted-foreground">
                           {insight.content.slice(0, 180)}{insight.content.length > 180 ? '…' : ''}
                         </p>
-                        <div className="mt-3 flex justify-end">
+                        <div className="mt-3 flex justify-end gap-2">
                           <Button size="sm" variant="outline" onClick={() => setSelectedInsight(insight)}>
                             View Insight
                           </Button>
+                          <Button
+                            size="sm"
+                            variant="outline"
+                            onClick={() => setInsightToDelete(insight.id)}
+                            className="text-destructive hover:text-destructive"
+                          >
+                            <Trash2 className="h-4 w-4" />
+                          </Button>
                         </div>
                       </div>
                     ))}
@@ -743,7 +781,41 @@ export function SourceDetailContent({
           }
         }}
         insight={selectedInsight ?? undefined}
+        onDelete={async (insightId) => {
+          try {
+            await insightsApi.delete(insightId)
+            toast.success('Insight deleted successfully')
+            setSelectedInsight(null)
+            await fetchInsights()
+          } catch (err) {
+            console.error('Failed to delete insight:', err)
+            toast.error('Failed to delete insight')
+          }
+        }}
       />
+
+      <AlertDialog open={!!insightToDelete} onOpenChange={() => setInsightToDelete(null)}>
+        <AlertDialogContent>
+          <AlertDialogHeader>
+            <AlertDialogTitle>Delete Insight?</AlertDialogTitle>
+            <AlertDialogDescription>
+              This action cannot be undone. This insight will be permanently deleted.
+            </AlertDialogDescription>
+          </AlertDialogHeader>
+          <AlertDialogFooter>
+            <AlertDialogCancel disabled={deletingInsight}>Cancel</AlertDialogCancel>
+            <AlertDialogAction asChild>
+              <Button
+                onClick={handleDeleteInsight}
+                disabled={deletingInsight}
+                variant="destructive"
+              >
+                {deletingInsight ? 'Deleting...' : 'Delete'}
+              </Button>
+            </AlertDialogAction>
+          </AlertDialogFooter>
+        </AlertDialogContent>
+      </AlertDialog>
     </div>
   )
 }
diff --git a/frontend/src/components/source/SourceInsightDialog.tsx b/frontend/src/components/source/SourceInsightDialog.tsx
index 9946277..1ff3ad5 100644
--- a/frontend/src/components/source/SourceInsightDialog.tsx
+++ b/frontend/src/components/source/SourceInsightDialog.tsx
@@ -1,6 +1,7 @@
 'use client'
 
-import { Dialog, DialogContent, DialogHeader, DialogTitle } from '@/components/ui/dialog'
+import { useState, useEffect } from 'react'
+import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter } from '@/components/ui/dialog'
 import { Badge } from '@/components/ui/badge'
 import { Button } from '@/components/ui/button'
 import { FileText } from 'lucide-react'
@@ -19,6 +20,7 @@ interface SourceInsightDialogProps {
     created?: string
     source_id?: string
   }
+  onDelete?: (insightId: string) => Promise<void>
 }
 
 export function SourceInsightDialog({ open, onOpenChange, insight }: SourceInsightDialogProps) {
@@ -70,35 +72,60 @@ export function SourceInsightDialog({ open, onOpenChange, insight }: SourceInsig
           </DialogTitle>
         </DialogHeader>
 
-        <div className="flex-1 overflow-y-auto min-h-0">
-          {isLoading ? (
-            <div className="flex items-center justify-center py-10">
-              <span className="text-sm text-muted-foreground">Loading insight…</span>
-            </div>
-          ) : displayInsight ? (
-            <div className="prose prose-sm prose-neutral dark:prose-invert max-w-none">
-              <ReactMarkdown
-                remarkPlugins={[remarkGfm]}
-                components={{
-                  table: ({ children }) => (
-                    <div className="my-4 overflow-x-auto">
-                      <table className="min-w-full border-collapse border border-border">{children}</table>
-                    </div>
-                  ),
-                  thead: ({ children }) => <thead className="bg-muted">{children}</thead>,
-                  tbody: ({ children }) => <tbody>{children}</tbody>,
-                  tr: ({ children }) => <tr className="border-b border-border">{children}</tr>,
-                  th: ({ children }) => <th className="border border-border px-3 py-2 text-left font-semibold">{children}</th>,
-                  td: ({ children }) => <td className="border border-border px-3 py-2">{children}</td>,
-                }}
+        {showDeleteConfirm ? (
+          <div className="flex flex-col items-center justify-center py-8 gap-4">
+            <p className="text-center text-muted-foreground">
+              Are you sure you want to delete this insight?<br />
+              <span className="text-sm">This action cannot be undone.</span>
+            </p>
+            <div className="flex gap-2">
+              <Button
+                variant="outline"
+                onClick={() => setShowDeleteConfirm(false)}
+                disabled={isDeleting}
               >
-                {displayInsight.content}
-              </ReactMarkdown>
+                Cancel
+              </Button>
+              <Button
+                variant="destructive"
+                onClick={handleDelete}
+                disabled={isDeleting}
+              >
+                {isDeleting ? 'Deleting...' : 'Delete'}
+              </Button>
             </div>
-          ) : (
-            <p className="text-sm text-muted-foreground">No insight selected.</p>
-          )}
-        </div>
+          </div>
+        ) : (
+          <div className="flex-1 overflow-y-auto min-h-0">
+            {isLoading ? (
+              <div className="flex items-center justify-center py-10">
+                <span className="text-sm text-muted-foreground">Loading insight…</span>
+              </div>
+            ) : displayInsight ? (
+              <div className="prose prose-sm prose-neutral dark:prose-invert max-w-none">
+                <ReactMarkdown
+                  remarkPlugins={[remarkGfm]}
+                  components={{
+                    table: ({ children }) => (
+                      <div className="my-4 overflow-x-auto">
+                        <table className="min-w-full border-collapse border border-border">{children}</table>
+                      </div>
+                    ),
+                    thead: ({ children }) => <thead className="bg-muted">{children}</thead>,
+                    tbody: ({ children }) => <tbody>{children}</tbody>,
+                    tr: ({ children }) => <tr className="border-b border-border">{children}</tr>,
+                    th: ({ children }) => <th className="border border-border px-3 py-2 text-left font-semibold">{children}</th>,
+                    td: ({ children }) => <td className="border border-border px-3 py-2">{children}</td>,
+                  }}
+                >
+                  {displayInsight.content}
+                </ReactMarkdown>
+              </div>
+            ) : (
+              <p className="text-sm text-muted-foreground">No insight selected.</p>
+            )}
+          </div>
+        )}
       </DialogContent>
     </Dialog>
   )
diff --git a/frontend/src/lib/api/insights.ts b/frontend/src/lib/api/insights.ts
index d59f854..1f6677c 100644
--- a/frontend/src/lib/api/insights.ts
+++ b/frontend/src/lib/api/insights.ts
@@ -30,5 +30,9 @@ export const insightsApi = {
       data
     )
     return response.data
+  },
+
+  delete: async (insightId: string) => {
+    await apiClient.delete(`/insights/${insightId}`)
   }
 }
\ No newline at end of file