Thomson Chan Tam-Sun (Chinese: ???; Jyutping: Can4 Taam4san1; Cantonese pronunciation: [ts???n t???m s?´n]; 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.