Elena Sergeevna Baltacha (14 August 1983 – 4 May 2014) was a Ukrainian-born British professional tennis player. Being a four-time winner of the Aegon Award, she was also a long-term British No. 1, a position she held intermittently from 2002 to 2012.

She retired from tennis aged 30 in November 2013, but was diagnosed with liver cancer in March 2014, less than four months after the announcement. Baltacha died on May 4, 2014.