Saidai-ji (西大寺) or the "Great Western Temple" is a Buddhist temple that was once one of the powerful Seven Great Temples in the city of Nara, Nara Prefecture, Japan. The temple was first established in AD 765 as a counterpart to Tōdai-ji and it is the main temple of the Shingon Risshu (真言律宗) sect of Buddhism after the sect's founder, Eison (叡尊), took over administration in 1238.^[1] It has undergone several reconstruction efforts since then during the succeeding centuries.

One building, the Aizen-dō, houses a statue of Aizen Myō-ō, while the main image is of Shakyamuni Buddha, erected by Eison in 1249.^[1]

• Main Hall (Hondō – 本堂) – Important Cultural Property. It was rebuilt in 1808.
• Shiō-dō (四王堂) – It was rebuilt in 1674.
• Aizen-dō (愛染堂) – It was reconstructed in 1762.

• Shiō-dō
• Aizen-dō
• Manjushri Bodhisattva (Monju Bosatsu)

• For an explanation of terms concerning Japanese Buddhism, Japanese Buddhist art, and Japanese Buddhist temple architecture, see the Glossary of Japanese Buddhism.
• List of National Treasures of Japan (crafts-others)
• List of National Treasures of Japan (paintings)
• List of National Treasures of Japan (sculptures)
• List of National Treasures of Japan (writings)
• Nanto Shichi Daiji, Seven Great Temples of Nanto.
• Thirteen Buddhist Sites of Yamato