Chea Vichea (Khmer: ជា វិជ្ជា) was the leader of the Free Trade Union of Workers of the Kingdom of Cambodia (FTUWKC) until his assassination on Chinese New Year, 22 January 2004.

He had recently been dismissed by the INSM Garment Factory (located in the Chum Chao District of Phnom Penh) as a reprisal for helping to establish a trade union at the company.

A few days after Vichea's killing, and facing mounting criticism for their failure to act, Cambodian authorities arrested two men and charged them with the murder.

The second suspect, Sok Sam Oeun, has consistently denied any involvement and also has alibis placing him in a party with friends at the time of the murder.

Sok Sam Oeun and Born Samnang were judged guilty after a trial where no witnesses testified against the accused and no forensic evidence was brought to court.