diff --git a/db/dojo_event_services.yml b/db/dojo_event_services.yml
index b5876b9d..b0382f01 100644
--- a/db/dojo_event_services.yml
+++ b/db/dojo_event_services.yml
@@ -27,6 +27,12 @@
 ### 以下、Dojo 情報まとめ ###
 ### (dojos.yml の追加順) ###
 
+# 大和西大寺（奈良・生駒・田原本・平群・明日香のイベント収集サイトは共通のため省略）
+#- dojo_id: 352
+#  name: connpass
+#  group_id: 2617
+#  url: https://coderdojo-nara-ikoma.connpass.com/
+
 # 新居浜（愛媛）
 - dojo_id: 351
   name: connpass
diff --git a/db/dojos.yml b/db/dojos.yml
index 89a575d8..1ce04846 100644
--- a/db/dojos.yml
+++ b/db/dojos.yml
@@ -3349,6 +3349,19 @@
   - micro:bit
   - toio
   - Minecraft
+- id: 352
+  order: '292010'
+  created_at: '2026-03-29'
+  name: 大和西大寺
+  prefecture_id: 29
+  url: https://coderdojo-nara-ikoma.connpass.com/
+  logo: "/img/dojos/yamato-saidaiji.webp"
+  description: 奈良市で不定期開催
+  tags:
+  - Scratch
+  - Luanti
+  - KNIME
+  - AI
 - id: 36
   order: '292095'
   created_at: '2016-04-25'
diff --git a/public/img/dojos/yamato-saidaiji.png b/public/img/dojos/yamato-saidaiji.png
new file mode 100644
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diff --git a/public/img/dojos/yamato-saidaiji.webp b/public/img/dojos/yamato-saidaiji.webp
new file mode 100644
index 00000000..0ba0ccd5
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