Julia Terziyska (Bulgarian: Джулия Терзийска; born 5 March 1996) is a Bulgarian tennis player. Terziyska has a career-high singles ranking of world No. 306, achieved on 15 February 2016. She reached her highest WTA doubles ranking of No. 238 on 5 August 2019. Terziyska has won 12 singles and 15 doubles titles on the ITF Women's Circuit. Playing in Billie Jean King Cup competitions, she has a win–loss record of 5–3. She made her debut for Bulgaria in 2018.