Nina Stadler (born 11 October 1995) is a Swiss former professional tennis player.

Stadler has a career-high singles ranking by the Women's Tennis Association (WTA) of 532, which she reached on 24 September 2022.

[1] Stadler was particularly successful in doubles, she won 13 titles with various partners on the ITF Women's Circuit.

In September 2021, they played their third final in that season, becoming champions in Johannesburg, South Africa; they defeated the Dutch duo Eva Vedder and Stéphanie Visscher.

[4] The following week they ended runners-up in the city of Pretoria, losing to Russian Amina Anshba and American Elizabeth Mandlik in the final.