Sergei Igorevich Ostapchuk (Belarusian: Сяргей Астапчук (Siarhej Astapchuk); March 19, 1990 – September 7, 2011) was an ice hockey player.
He was playing with Lokomotiv Yaroslavl in the Kontinental Hockey League (KHL).
Ostapchuk died on September 7, 2011, in the 2011 Lokomotiv Yaroslavl plane crash disaster.
The plane was carrying the Lokomotiv hockey team from Yaroslavl to Minsk, the capital of Belarus, where it was to play against Dinamo Minsk in the 2011 season opening game of the KHL.
This Belarusian biographical article relating to ice hockey is a stub.