The Gaven Reefs, also known as the Burgos Reefs, is a group of two reefs in the Tizard Bank of the Spratly Islands in the South China Sea. The two individual reefs are known as 南薰礁; Nánxūn Jiāo and 西南礁; Xīnán Jiāo in Mandarin, and Đá Ga Ven and Đá Lạc in Vietnamese).