Nina Stojanović (Serbian Cyrillic: Нина Стојановић, pronounced [stojǎːnoʋitɕ]; born 30 July 1996) is a Serbian professional tennis player. On 2 March 2020, Stojanović reached a career-high singles ranking of world No. 81. On 17 January 2022, she peaked at No. 37 in the WTA doubles rankings.
She has won two doubles titles on the WTA Tour, as well as one WTA 125 title in singles and one in doubles. As a junior, Stojanović reached three major semifinals in doubles, each on a different surface, the French Open and Wimbledon in 2013, and the Australian Open in 2014. As a professional, she made her debut on the WTA Tour in 2016. In 2019, Stojanović reached her first WTA Tour semifinal in singles at the Jiangxi International and also won her first doubles title at the Baltic Open. That year, she also debuted in the top 100 in singles, while in doubles, she made her top-100 debut in 2017, when she reached three WTA Tour finals. Stojanović finished fourth in the mixed doubles at the delayed 2020 Tokyo Olympics.