Oleksandr Vasyliovych Sitkovskyi (Ukrainian: Олександр Васильович Сітковський, also transliterated Sitkovskyy or Sitkovskiy, born 9 June 1978) is a Ukrainian long-distance runner.

[1] At the 2012 Summer Olympics, he competed in the Men's marathon, finishing in 12th place.

He also competed at the 2008 Summer Olympics, but did not finish the course.

[2] In 2021, he competed in the men's marathon at the 2020 Summer Olympics held in Tokyo, Japan.

This biographical article relating to Ukrainian athletics is a stub.