Chea Sim (Khmer: ជា ស៊ីម, born November 15, 1932 in Romeas Hek
district, Svay Rieng Province, Cambodia) is a
Cambodian politician. He was the President of the National Assembly from 1981 to 1998 (from June to October 1993
its vice president) and is currently the President of the Senate (since 1999), and has also served as
Cambodia's acting Head of State many times before. He is of Chinese descent, with roots from
From April 6, 1992 to June 14, 1993, he served as the nation's interim leader ("Chairman of the Council of
State") before Cambodia became a monarchy.
He also acted as Head of State on behalf of King Norodom Sihanouk for
brief periods in 1993, 1994, 1995, and 2004. After the King announced his permanent abdication on October 7,
2004, Chea Sim once again became acting Head of State. He left that position on October 14, 2004 when Norodom Sihamoni became king.
Sihanouk awarded Chea Sim the honorary title of Sâmdech in 1993. Chea Sim is a member of the Cambodian People's Party.