Tatsiana Mazurkevich (Belarusian: ??????? ?????????? ?????????? ?????????; Lacinka: Tacciana Michajlauna Mazurkievic Jelizarava; born September 7, 1983) is a Belarusian modern pentathlete.
She competed at the 2004 Summer Olympics in Athens, Greece, where she finished ninth in the women's event, with a score of 5,220 points.
Outside her Olympic career, Mazurkevich is also a multiple medalist at the World Modern Pentathlon Championships, winning four medals in overall.