Kelly Chan Kum Seng (Chinese: 陈金星; pinyin: Chén Jīnxīng; 15 December 1956 – 27 August 1998) was a Singaporean windsurfer.

Chan represented Singapore from 1982 to 1997, winning several regional championships including a gold, a silver and two bronze medals at the Southeast Asian Games.

[16][19] In 1988, Chan won the silver medal in the Division II boardsailing event at the Asian Yachting Federation Regatta in Jakarta.

[26] A couple of weeks later, he won four races and finished second in two other to win the Lightweight Raceboard class at the Siam World Cup.

[2][28] In May, he won all four races at the World Windsurfing Festival Spring Cup in Mondello, Sicily to emerge champion in his category.

[29] At the 1993 Southeast Asian Games held in Singapore, Chan won a bronze medal in the Raceboard Lightweight Open event.

[34] Although Chan was selected for the 1997 Southeast Asian Games, he withdrew his place as he felt he could not compete for the gold medal due to work and personal commitments affecting his training.

[13][40][44] On 27 August 1998, Chan was returning to Pekanbaru Air Base during a military exercise in Indonesia, when he was involved in a fatal road crash.