diff --git a/apps/x/apps/main/src/ipc.ts b/apps/x/apps/main/src/ipc.ts
index db84ff5e..9511c9dc 100644
--- a/apps/x/apps/main/src/ipc.ts
+++ b/apps/x/apps/main/src/ipc.ts
@@ -703,7 +703,7 @@ export function setupIpcHandlers() {
       return { success: false, error: 'Unknown format' };
     },
     'meeting:summarize': async (_event, args) => {
-      const notes = await summarizeMeeting(args.transcript);
+      const notes = await summarizeMeeting(args.transcript, args.meetingStartTime);
       return { notes };
     },
     'inline-task:classifySchedule': async (_event, args) => {
diff --git a/apps/x/apps/renderer/src/App.tsx b/apps/x/apps/renderer/src/App.tsx
index 01918caa..668df0fa 100644
--- a/apps/x/apps/renderer/src/App.tsx
+++ b/apps/x/apps/renderer/src/App.tsx
@@ -3362,8 +3362,10 @@ function App() {
           const result = await window.ipc.invoke('workspace:readFile', { path: notePath, encoding: 'utf8' })
           const fileContent = result.data
           if (fileContent && fileContent.trim()) {
-            // Call LLM to summarize the transcript
-            const { notes } = await window.ipc.invoke('meeting:summarize', { transcript: fileContent })
+            // Extract meeting start time from frontmatter for calendar matching
+            const dateMatch = fileContent.match(/^date:\s*"(.+)"$/m)
+            const meetingStartTime = dateMatch?.[1]
+            const { notes } = await window.ipc.invoke('meeting:summarize', { transcript: fileContent, meetingStartTime })
             if (notes) {
               // Prepend meeting notes below the title but above the transcript
               const { raw: fm, body: transcriptBody } = splitFrontmatter(fileContent)
diff --git a/apps/x/packages/core/src/knowledge/summarize_meeting.ts b/apps/x/packages/core/src/knowledge/summarize_meeting.ts
index 395bffa7..6738a957 100644
--- a/apps/x/packages/core/src/knowledge/summarize_meeting.ts
+++ b/apps/x/packages/core/src/knowledge/summarize_meeting.ts
@@ -1,30 +1,102 @@
+import fs from 'fs';
+import path from 'path';
 import { generateText } from 'ai';
 import container from '../di/container.js';
 import type { IModelConfigRepo } from '../models/repo.js';
 import { createProvider } from '../models/models.js';
+import { WorkDir } from '../config/config.js';
 
-const SYSTEM_PROMPT = `You are a meeting notes assistant. Given a raw meeting transcript, create concise, well-organized meeting notes.
+const CALENDAR_SYNC_DIR = path.join(WorkDir, 'calendar_sync');
 
-Format rules:
+const SYSTEM_PROMPT = `You are a meeting notes assistant. Given a raw meeting transcript and a list of calendar events from around the same time, create concise, well-organized meeting notes.
+
+## Calendar matching
+You will be given the transcript (with a timestamp of when recording started) and recent calendar events with their titles, times, and attendees. If a calendar event clearly matches this meeting (overlapping time + content aligns), then:
+- Use the calendar event title as the meeting title (output it as the first line: "## <event title>")
+- Replace generic speaker labels ("Speaker 0", "Speaker 1", "System audio") with actual attendee names, but ONLY if you have HIGH CONFIDENCE about which speaker is which based on the discussion content. If unsure, use "They" instead of "Speaker 0" etc.
+- "You" in the transcript is the local user — if the calendar event has an organizer or you can identify who "You" is from context, use their name.
+
+If no calendar event matches with high confidence, or if no calendar events are provided, skip the title line and use "They" for all non-"You" speakers.
+
+## Format rules
 - Use ### for section headers that group related discussion topics
 - Section headers should be in sentence case (e.g. "### Onboarding flow status"), NOT Title Case
 - Use bullet points with sub-bullets for details
 - Include a "### Action items" section at the end if any were discussed
 - Focus on decisions, key discussions, and takeaways — not verbatim quotes
-- Attribute statements to speakers when relevant (use their names/labels from the transcript)
+- Attribute statements to speakers when relevant
 - Keep it concise — the notes should be much shorter than the transcript
 - Output markdown only, no preamble or explanation`;
 
-export async function summarizeMeeting(transcript: string): Promise<string> {
+/**
+ * Load recent calendar events from the calendar_sync directory.
+ * Returns a formatted string of events for the LLM prompt.
+ */
+function loadRecentCalendarEvents(meetingTime: string): string {
+    try {
+        if (!fs.existsSync(CALENDAR_SYNC_DIR)) return '';
+
+        const files = fs.readdirSync(CALENDAR_SYNC_DIR).filter(f => f.endsWith('.json') && f !== 'sync_state.json' && f !== 'composio_state.json');
+        if (files.length === 0) return '';
+
+        const meetingDate = new Date(meetingTime);
+        // Only consider events within ±3 hours of the meeting
+        const windowMs = 3 * 60 * 60 * 1000;
+
+        const relevantEvents: string[] = [];
+
+        for (const file of files) {
+            try {
+                const content = fs.readFileSync(path.join(CALENDAR_SYNC_DIR, file), 'utf-8');
+                const event = JSON.parse(content);
+
+                const startTime = event.start?.dateTime || event.start?.date;
+                if (!startTime) continue;
+
+                const eventStart = new Date(startTime);
+                if (Math.abs(eventStart.getTime() - meetingDate.getTime()) > windowMs) continue;
+
+                const attendees = (event.attendees || [])
+                    .map((a: { displayName?: string; email?: string }) => a.displayName || a.email)
+                    .filter(Boolean)
+                    .join(', ');
+
+                const endTime = event.end?.dateTime || event.end?.date || '';
+                const organizer = event.organizer?.displayName || event.organizer?.email || '';
+
+                relevantEvents.push(
+                    `- Title: ${event.summary || 'Untitled'}\n` +
+                    `  Start: ${startTime}\n` +
+                    `  End: ${endTime}\n` +
+                    `  Organizer: ${organizer}\n` +
+                    `  Attendees: ${attendees || 'none listed'}`
+                );
+            } catch {
+                // Skip malformed files
+            }
+        }
+
+        if (relevantEvents.length === 0) return '';
+        return `\n\n## Calendar events around this time\n\n${relevantEvents.join('\n\n')}`;
+    } catch {
+        return '';
+    }
+}
+
+export async function summarizeMeeting(transcript: string, meetingStartTime?: string): Promise<string> {
     const repo = container.resolve<IModelConfigRepo>('modelConfigRepo');
     const config = await repo.getConfig();
     const provider = createProvider(config.provider);
     const model = provider.languageModel(config.model);
 
+    const calendarContext = meetingStartTime ? loadRecentCalendarEvents(meetingStartTime) : '';
+
+    const prompt = `Meeting recording started at: ${meetingStartTime || 'unknown'}\n\n${transcript}${calendarContext}`;
+
     const result = await generateText({
         model,
         system: SYSTEM_PROMPT,
-        prompt: transcript,
+        prompt,
     });
 
     return result.text.trim();
diff --git a/apps/x/packages/shared/src/ipc.ts b/apps/x/packages/shared/src/ipc.ts
index 711c7e93..295ee966 100644
--- a/apps/x/packages/shared/src/ipc.ts
+++ b/apps/x/packages/shared/src/ipc.ts
@@ -501,6 +501,7 @@ const ipcSchemas = {
   'meeting:summarize': {
     req: z.object({
       transcript: z.string(),
+      meetingStartTime: z.string().optional(),
     }),
     res: z.object({
       notes: z.string(),