Anna Kozak (; born 22 June 1974) is a Belarusian sprinter.
Together with Natallia Salahub, Ilona Usovich and Sviatlana Usovich she won a silver medal in 4 x 400 metres relay at the 2004 IAAF World Indoor Championships. For the 2006 IAAF World Indoor Championships, the Belarusian team had substituted Svetlana Usovich with Yulyana Zhalniaruk, and won a bronze medal.