Sydney Siame

Sydney Sido Siame (born 7 October 1997) is a Zambian sprinter. He competed in the 200 metres at the 2015 World Championships in Beijing without advancing from the first round. In addition, he won a gold medal at the 2014 Summer Youth Olympics.

A run of 9.88 seconds was recorded for the 100 m in Lusaka in 2017, but Siame's time was excluded from the global lists on the basis of doubtful timing. This would have been the first time a Zambian had broken the 10-second barrier and a highly unusual improvement of 0.34 seconds for the athlete.

Competition record
1Disqualified in the semifinals

2Disqualified in the final

3Postponed from 2020 due to the COVID-19 pandemic

Personal bests
Outdoor
 * 100 metres – 10.06 (+1.1 m/s, Šamorín 2018)
 * 200 metres – 20.16 (+1.5 m/s, La Chaux-de-Fonds 2019)