Irina-Camelia Begu (born 26 August 1990) is a Romanian professional tennis player. She reached a career-high singles ranking of No. 22 in the world, in August 2016. Two years later, she reached her highest WTA doubles ranking, also No. 22. Begu has won five singles titles and nine doubles titles on the WTA Tour. She also has won two singles titles on the WTA Challenger Tour, as well as 12 singles and 19 doubles titles on the ITF Circuit.
As a junior, she reached semifinal at the 2007 Wimbledon Championships, partnering with Oksana Kalashnikova. Later, as a senior, she continued with Grand Slam doubles success. She reached the semifinal at the 2018 Australian Open and quarterfinals of the 2017 French Open and 2018 Wimbledon Championships. In singles, she has the round of 16 as her best Grand Slam result at the 2015 Australian Open, 2016 French Open and 2022 French Open.
In singles, she reached one Premier final, at the 2014 Kremlin Cup, but lost to Anastasia Pavlyuchenkova. Her other significant results in singles include two quarterfinals of the Premier Mandatory-level Madrid Open in 2015 and 2016 and semifinal of the Premier 5 Italian Open in 2016. In doubles, she has never won higher level tournament than International, but reached the final of the Premier-5 Wuhan Open in 2015, as well as, two Premier-level finals at the Kremlin Cup in 2015 and Eastbourne International in 2018.