Ostapchuk () is a surname. Notable people with the surname include:

Nadzeya Ostapchuk (born 1980), Belarusian shot putter Sergei Ostapchuk (1990–2011), Belarusian ice hockey player Yuliya Ostapchuk (born 1989), Ukrainian freestyle wrestler Zack Ostapchuk (born 2003), Canadian ice hockey player

See also