Thomson Chan Tam-Sun (Chinese: 陳譚新; Jyutping: Can4 Taam4san1; Cantonese pronunciation:[tsʰɐn˩ tʰam˩ sɐn˥]; born 8 May 1941) is a retired football referee from Hong Kong. He is best known for being a referee at the World Cup in 1982. He was the referee for one match and served as a linesman for 3 other matches. Now, he sometimes works as a guest commentator in Hong Kong.