diff --git a/.github/workflows/discord-notification.yml b/.github/workflows/discord-notification.yml
index 8effad72..b5f4c5c9 100644
--- a/.github/workflows/discord-notification.yml
+++ b/.github/workflows/discord-notification.yml
@@ -12,10 +12,26 @@ on:
 
 jobs:
   notify:
-    permissions: {}
+    permissions:
+      pull-requests: write
+      issues: write
     runs-on: ubuntu-latest
 
     steps:
+      - name: Remove reminded label after review
+        if: github.event_name == 'pull_request_review' && github.event.action == 'submitted'
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          if ! output=$(gh pr edit "${{ github.event.pull_request.number }}" --repo "${{ github.repository }}" --remove-label "🫵🏻 Reminded" 2>&1); then
+            if echo "$output" | grep -qi "not found"; then
+              echo "Label not present, skipping: $output"
+            else
+              echo "$output" >&2
+              exit 1
+            fi
+          fi
+
       - name: Send Detailed Discord Message
         shell: bash
         env:
diff --git a/.github/workflows/discord-reviewer-reminder.yml b/.github/workflows/discord-reviewer-reminder.yml
new file mode 100644
index 00000000..fa1b21be
--- /dev/null
+++ b/.github/workflows/discord-reviewer-reminder.yml
@@ -0,0 +1,144 @@
+name: ⏰ Discord Reviewer Reminder
+
+on:
+  schedule:
+    - cron: '0 1,6 * * 1-5' # 평일 KST 10:00, 15:00
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}
+  cancel-in-progress: false
+
+jobs:
+  remind:
+    permissions:
+      pull-requests: write
+      issues: write
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Remind pending reviewers
+        uses: actions/github-script@v7
+        env:
+          DISCORD_WEBHOOK_URL: ${{ secrets.DISCORD_REMINDER_WEBHOOK_URL }}
+        with:
+          script: |
+            const REMINDER_THRESHOLD_HOURS = 24;
+            const REMINDED_LABEL = '🫵🏻 Reminded';
+
+            const NAME_MAP = {
+              kimminna: '민아',
+              ehye1: '혜원',
+              jjangminii: '정민',
+              'yumin-kim2': '유민',
+            };
+            const resolveName = (login) => NAME_MAP[login] || login;
+
+            const webhookUrl = process.env.DISCORD_WEBHOOK_URL;
+            if (!webhookUrl) {
+              console.log('DISCORD_REMINDER_WEBHOOK_URL not set, skipping');
+              return;
+            }
+
+            const pulls = await github.paginate(github.rest.pulls.list, {
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              state: 'open',
+              per_page: 100,
+            });
+
+            const now = Date.now();
+            const failedPrs = [];
+
+            for (const pr of pulls) {
+              if (pr.draft) continue;
+
+              const labels = pr.labels.map((label) => label.name);
+              if (labels.includes(REMINDED_LABEL)) continue;
+
+              const reviewers = pr.requested_reviewers ?? [];
+              const teams = pr.requested_teams ?? [];
+              if (reviewers.length === 0 && teams.length === 0) continue;
+
+              const timelineEvents = await github.paginate(github.rest.issues.listEventsForTimeline, {
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: pr.number,
+                per_page: 100,
+              });
+
+              const reviewRequestTimes = new Map();
+              for (const event of timelineEvents) {
+                if (event.event !== 'review_requested') continue;
+                const login = event.requested_reviewer?.login;
+                if (login) {
+                  reviewRequestTimes.set(`user:${login}`, event.created_at);
+                  continue;
+                }
+                const teamSlug = event.requested_team?.slug;
+                if (teamSlug) {
+                  reviewRequestTimes.set(`team:${teamSlug}`, event.created_at);
+                }
+              }
+
+              const requestTimestamps = [
+                ...reviewers.map((reviewer) => reviewRequestTimes.get(`user:${reviewer.login}`)),
+                ...teams.map((team) => reviewRequestTimes.get(`team:${team.slug}`)),
+              ]
+                .filter(Boolean)
+                .map((timestamp) => new Date(timestamp).getTime());
+
+              const oldestRequestTime =
+                requestTimestamps.length > 0 ? Math.min(...requestTimestamps) : new Date(pr.created_at).getTime();
+
+              const hoursOpen = (now - oldestRequestTime) / (1000 * 60 * 60);
+              if (hoursOpen < REMINDER_THRESHOLD_HOURS) continue;
+
+              const reviewerNames = [
+                ...reviewers.map((reviewer) => resolveName(reviewer.login)),
+                ...teams.map((team) => team.name || team.slug),
+              ].join(', ');
+
+              const payload = {
+                embeds: [
+                  {
+                    title: '⏰ 리뷰 리마인드',
+                    url: pr.html_url,
+                    description: `**${pr.title}**\n리뷰 요청 후 ${Math.floor(hoursOpen)}시간째 대기 중이에요.`,
+                    color: 16776960,
+                    fields: [{ name: '리뷰어', value: reviewerNames, inline: true }],
+                    footer: { text: 'GitHub Actions' },
+                    timestamp: new Date().toISOString(),
+                  },
+                ],
+              };
+
+              try {
+                const response = await fetch(webhookUrl, {
+                  method: 'POST',
+                  headers: { 'Content-Type': 'application/json' },
+                  body: JSON.stringify(payload),
+                  signal: AbortSignal.timeout(10000),
+                });
+
+                if (!response.ok) {
+                  console.error(`Discord webhook failed for PR #${pr.number}: ${response.status}`);
+                  failedPrs.push(pr.number);
+                  continue;
+                }
+
+                await github.rest.issues.addLabels({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: pr.number,
+                  labels: [REMINDED_LABEL],
+                });
+              } catch (error) {
+                console.error(`Failed to process PR #${pr.number}: ${error.message}`);
+                failedPrs.push(pr.number);
+              }
+            }
+
+            if (failedPrs.length > 0) {
+              console.error(`Failed to fully process PRs: ${failedPrs.join(', ')}`);
+            }