diff --git a/ui/src/components/classroom/KickParticipantModal.tsx b/ui/src/components/classroom/KickParticipantModal.tsx
index c6e8fb93..b3278f0e 100644
--- a/ui/src/components/classroom/KickParticipantModal.tsx
+++ b/ui/src/components/classroom/KickParticipantModal.tsx
@@ -1,12 +1,12 @@
-import React from 'react';
-import { motion } from 'framer-motion';
-import { FaUserTimes, FaExclamationTriangle } from 'react-icons/fa';
+import React from 'react'
+import { motion } from 'framer-motion'
+import { FaUserTimes, FaExclamationTriangle } from 'react-icons/fa'
 
 interface KickParticipantModalProps {
-  participant: { id: string; name: string } | null;
-  isOpen: boolean;
-  onClose: () => void;
-  onConfirm: (participantId: string) => void;
+  participant: { id: string; name: string } | null
+  isOpen: boolean
+  onClose: () => void
+  onConfirm: (participantId: string, participantName: string) => void
 }
 
 export const KickParticipantModal: React.FC<KickParticipantModalProps> = ({
@@ -15,12 +15,12 @@ export const KickParticipantModal: React.FC<KickParticipantModalProps> = ({
   onClose,
   onConfirm,
 }) => {
-  if (!isOpen || !participant) return null;
+  if (!isOpen || !participant) return null
 
   const handleConfirm = () => {
-    onConfirm(participant.id);
-    onClose();
-  };
+    onConfirm(participant.id, participant.name)
+    onClose()
+  }
 
   return (
     <div className="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50">
@@ -39,10 +39,11 @@ export const KickParticipantModal: React.FC<KickParticipantModalProps> = ({
               <p className="text-sm text-gray-600">Bu işlem geri alınamaz</p>
             </div>
           </div>
-          
+
           <div className="mb-6">
             <p className="text-gray-700 mb-2">
-              <strong>"{participant.name}"</strong> adlı katılımcıyı sınıftan çıkarmak istediğinizden emin misiniz?
+              <strong>"{participant.name}"</strong> adlı katılımcıyı sınıftan çıkarmak
+              istediğinizden emin misiniz?
             </p>
             <div className="bg-yellow-50 border border-yellow-200 rounded-lg p-3">
               <div className="flex items-start">
@@ -58,7 +59,7 @@ export const KickParticipantModal: React.FC<KickParticipantModalProps> = ({
               </div>
             </div>
           </div>
-          
+
           <div className="flex items-center justify-end space-x-4">
             <button
               onClick={onClose}
@@ -77,5 +78,5 @@ export const KickParticipantModal: React.FC<KickParticipantModalProps> = ({
         </div>
       </motion.div>
     </div>
-  );
-};
\ No newline at end of file
+  )
+}
diff --git a/ui/src/components/classroom/panels/ParticipantsPanel.tsx b/ui/src/components/classroom/panels/ParticipantsPanel.tsx
index 5330477d..f914e173 100644
--- a/ui/src/components/classroom/panels/ParticipantsPanel.tsx
+++ b/ui/src/components/classroom/panels/ParticipantsPanel.tsx
@@ -17,7 +17,7 @@ interface ParticipantsPanelProps {
   participants: ClassroomParticipantDto[]
   attendanceRecords: ClassroomAttendanceDto[]
   onMuteParticipant: (participantId: string, isMuted: boolean, isTeacher: boolean) => void
-  onKickParticipant: (participantId: string) => void
+  onKickParticipant: (participantId: string, participantName: string) => void
   onApproveHandRaise: (participantId: string) => void
   onDismissHandRaise: (participantId: string) => void
   onClose: () => void
@@ -129,20 +129,19 @@ const ParticipantsPanel: React.FC<ParticipantsPanelProps> = ({
                   </div>
                   <span className="text-gray-900">{participant.name}</span>
 
-                    {/* Hand Raise Indicator & Teacher Control */}
-                    {participant.isHandRaised && (
-                      user.role === 'teacher' && !participant.isTeacher ? (
-                        <button
-                          onClick={() => onDismissHandRaise(participant.id)}
-                          className="ml-2 p-1 rounded bg-yellow-100 hover:bg-yellow-200"
-                          title="El kaldırmayı kaldır"
-                        >
-                          <FaHandPaper className="text-yellow-600" />
-                        </button>
-                      ) : (
-                        <FaHandPaper className="text-yellow-600 ml-2" title="Parmak kaldırdı" />
-                      )
-                    )}
+                  {/* Hand Raise Indicator & Teacher Control */}
+                  {participant.isHandRaised &&
+                    (user.role === 'teacher' && !participant.isTeacher ? (
+                      <button
+                        onClick={() => onDismissHandRaise(participant.id)}
+                        className="ml-2 p-1 rounded bg-yellow-100 hover:bg-yellow-200"
+                        title="El kaldırmayı kaldır"
+                      >
+                        <FaHandPaper className="text-yellow-600" />
+                      </button>
+                    ) : (
+                      <FaHandPaper className="text-yellow-600 ml-2" title="Parmak kaldırdı" />
+                    ))}
                 </div>
 
                 <div className="flex items-center space-x-1">
@@ -177,7 +176,7 @@ const ParticipantsPanel: React.FC<ParticipantsPanelProps> = ({
                   {/* Kick Button (Teacher Only) */}
                   {user.role === 'teacher' && !participant.isTeacher && (
                     <button
-                      onClick={() => onKickParticipant(participant.id)}
+                      onClick={() => onKickParticipant(participant.id, participant.name)}
                       className="p-1 text-red-600 hover:bg-red-50 rounded transition-colors"
                       title="Sınıftan Çıkar"
                     >
diff --git a/ui/src/services/classroom/signalr.tsx b/ui/src/services/classroom/signalr.tsx
index 4672324b..11622e46 100644
--- a/ui/src/services/classroom/signalr.tsx
+++ b/ui/src/services/classroom/signalr.tsx
@@ -1,8 +1,4 @@
-import {
-  ClassroomAttendanceDto,
-  ClassroomChatDto,
-  HandRaiseDto,
-} from '@/proxy/classroom/models'
+import { ClassroomAttendanceDto, ClassroomChatDto, HandRaiseDto } from '@/proxy/classroom/models'
 import { ROUTES_ENUM } from '@/routes/route.constant'
 import { store } from '@/store/store'
 import * as signalR from '@microsoft/signalr'
@@ -22,7 +18,11 @@ export class SignalRService {
     isTeacher: boolean,
     isActive: boolean,
   ) => void
-  private onParticipantLeft?: (payload: { userId: string; sessionId: string }) => void
+  private onParticipantLeft?: (payload: {
+    userId: string
+    sessionId: string
+    userName: string
+  }) => void
   private onChatMessage?: (message: ClassroomChatDto) => void
   private onParticipantMuted?: (userId: string, isMuted: boolean) => void
   private onHandRaiseReceived?: (studentId: string) => void
@@ -59,9 +59,12 @@ export class SignalRService {
       },
     )
 
-    this.connection.on('ParticipantLeft', (payload: { userId: string; sessionId: string }) => {
-      this.onParticipantLeft?.(payload)
-    })
+    this.connection.on(
+      'ParticipantLeft',
+      (payload: { userId: string; sessionId: string; userName: string }) => {
+        this.onParticipantLeft?.(payload)
+      },
+    )
 
     this.connection.on('ChatMessage', (message: any) => {
       this.onChatMessage?.(message)
@@ -178,6 +181,7 @@ export class SignalRService {
         this.onParticipantLeft?.({
           userId: store.getState().auth.user.id,
           sessionId: this.currentSessionId,
+          userName: store.getState().auth.user.name,
         })
       }
 
@@ -241,7 +245,7 @@ export class SignalRService {
     const { auth } = store.getState()
 
     if (!this.isConnected) {
-      this.onParticipantLeft?.({ userId: auth.user.id, sessionId })
+      this.onParticipantLeft?.({ userId: auth.user.id, sessionId, userName: auth.user.name })
       return
     }
 
@@ -422,10 +426,10 @@ export class SignalRService {
     }
   }
 
-  async kickParticipant(sessionId: string, participantId: string): Promise<void> {
+  async kickParticipant(sessionId: string, participantId: string, userName: string): Promise<void> {
     if (!this.isConnected) {
       setTimeout(() => {
-        this.onParticipantLeft?.({ userId: participantId, sessionId })
+        this.onParticipantLeft?.({ userId: participantId, sessionId, userName })
       }, 100)
       return
     }
@@ -502,7 +506,9 @@ export class SignalRService {
     this.onParticipantJoined = callback
   }
 
-  setParticipantLeaveHandler(callback: (payload: { userId: string; sessionId: string }) => void) {
+  setParticipantLeaveHandler(
+    callback: (payload: { userId: string; sessionId: string; userName: string }) => void,
+  ) {
     this.onParticipantLeft = callback
   }
 
diff --git a/ui/src/views/classroom/RoomDetail.tsx b/ui/src/views/classroom/RoomDetail.tsx
index bea817a6..2f551150 100644
--- a/ui/src/views/classroom/RoomDetail.tsx
+++ b/ui/src/views/classroom/RoomDetail.tsx
@@ -363,14 +363,15 @@ const RoomDetail: React.FC = () => {
         localStream?.getTracks().forEach((t) => t.stop())
       })
 
-      signalRServiceRef.current.setParticipantLeaveHandler(({ userId, sessionId }) => {
+      signalRServiceRef.current.setParticipantLeaveHandler(({ userId, sessionId, userName }) => {
         if (userId !== user.id) {
-          const leftUser = participants.find((p) => p.id === userId)
-          const leftName = leftUser ? leftUser.name : 'Bilinmeyen'
-
-          toast.push(<Notification title={`Katılımcı ayrıldı: ${leftName}`} type="warning" />, {
-            placement: 'top-center',
-          })
+          toast.push(
+            <Notification
+              title={`Katılımcı ayrıldı: ${userName ?? 'Bilinmeyen'}`}
+              type="warning"
+            />,
+            { placement: 'top-center' },
+          )
         }
 
         // peer connection’ı kapat
@@ -584,10 +585,14 @@ const RoomDetail: React.FC = () => {
     }
   }
 
-  const handleKickParticipant = async (participantId: string) => {
+  const handleKickParticipant = async (participantId: string, participantName: string) => {
     if (signalRServiceRef.current && user.role === 'teacher') {
       try {
-        await signalRServiceRef.current.kickParticipant(classSession.id, participantId)
+        await signalRServiceRef.current.kickParticipant(
+          classSession.id,
+          participantId,
+          participantName,
+        )
         setAttendanceRecords((prev) =>
           prev.map((r) => {
             if (r.studentId === participantId && !r.leaveTime) {