Xi Ming Temple (Chinese 西明寺; pinyin xi ming si, also romanized Hsi-ming-ssu) is a famous temple from Chang'an, the capital of T'ang dynasty China.

In the 7th century, monk-pilgrims such as Yi Jing and Xuanzang translated Indian sutras at this temple.

Around 804-806, Kukai spent time at the temple studying Sanskrit in the Siddham script with Prajñā (who had studied at Nalanda), before being initiated as a Vajrayana master by Hui-kuo and returning to Japan in 806 to found the Japanese Shingon tradition.