Ekaterina Lopes (née Ivanova; born 18 December 1987) is a Russian former tennis player.
Her highest WTA rankings are 136 in singles, which she reached in June 2009, and 142 in doubles, set in January 2012. Her strongest showing in a tour event was reaching the quarterfinal of the Barcelona Ladies Open in 2008 as a qualifier.
On 18 October 2011, at the Kremlin Cup, Lopes defeated world No. 13, Jelena JankoviÃÂ, 6âÂÂ4, 1âÂÂ6, 6âÂÂ4.