Oksana Ivanovna Yermakova (, , also spelled Oxana Ermakova, born 16 April 1973) is an Estonian and Russian épée fencer.
She represented Soviet Union in 1991, Estonia in 1992âÂÂ1997 and Russia in 1998âÂÂ2005. She won two gold medals in the team épée event at the 2000 and 2004 Summer Olympics. She competed for Estonia at the 1996 Summer Olympics.
She is married to Russian former Olympic champion fencer and current coach Aleksandr Shirshov.