Kristina Mladenovic (Serbian: Кристина Младеновић, Mladenović, pronounced [mlaːdɛnoʋit͡ɕ]; born 14 May 1993) is a French professional tennis player.

Mladenovic has won one singles title and fourteen doubles titles on the WTA tour, as well as four singles and seven doubles titles on the ITF tour in her career. On September 28, 2015 she reached her best singles ranking of World No. 18. On October 24, 2016 she peaked at World No. 2 in the doubles rankings.

Although Mladenovic has enjoyed success in singles, her greatest achievements have all come in doubles, having won the mixed doubles titles at the 2014 Australian Open and 2013 Wimbledon Championships alongside Daniel Nestor and reaching the 2014 Wimbledon doubles final with Tímea Babos. At the 2016 French Open, Kristina won the doubles tournament with Caroline Garcia.

Mladenovic represents France at the Fed Cup, and first played in 2012. She has a win-loss record of 4–6 in singles and 9–2 in doubles.