The Xianxian Mosque (Chinese: 先贤清真寺) is a mosque in Yuexiu District, Guangzhou City, Guangdong Province, China. It is the largest mosque in Guangzhou.

The mosque was originally built during the Tang dynasty. It is also called the Hui-hui cemetery as it was a cemetery honoring 40 famous Arabic Muslim missionaries who were buried there.

The mosque was built with Ming dynasty architecture style and covers an area of 1,860 m including the 1,077 m of constructed area. It consists of prayer hall, pavilion, wing room and other facilities. The prayer hall is a two-story building capable of accommodating 1,000 worshipers.

The interior has a garden style look, with many trees and flowers inside the mosque. The cemetery is located on the roof.

The mosque is accessible within walking distance east of Guangzhou railway station.

• Islam in China
• List of mosques in China