Somsavat Lengsavad (born 15 June 1945) is a deputy prime minister of Laos. An ethnic Chinese, Chinese name: 凌绪光 (Ling Xu Guang), who hails from Luang Prabang with ancestry from Hainan, he was a protégé of Kaysone Phomvihane.
He became foreign minister in 1993 and served until June 8, 2006, when he was replaced by Thongloun Sisoulith.