Aleksandr Troshchilo (Belarusian: ?????????? ????????; born January 16, 1960) is a retired track and field sprinter from the Soviet Union, known for winning the bronze medal in the men's 4x400 metres relay at the 1982 European Championships.
A year later he triumphed in the same event at the inaugural 1983 World Championships alongside Sergey Lovachov, Nikolay Chernetskiy, and Viktor Markin, clocking a total time of 3:00.79.