Tong Kit Siong (Chinese: 崇吉松; pinyin: Chóng Jísōng) is a Bruneian male karateka.

At the 2002 Asian Games Siong won the bronze medal in the men's kumite under-75 kg category, topping the repechage stage ahead of fellow bronze medallist Kim Byung-chul of South Korea.

Initially third placed, he was upgraded to the silver medal after Malaysia's runner-up Rayner Kin Sion was disqualified for doping.

This gave Brunei three silver medallists in the sport, alongside HJ Johari and Sim Chung Hlang in the lower weight categories.

[5] For his efforts, Siong was awarded a US$3000 prize by Bruneian officials for excellence in sport.