Mats Rosenkranz (born 23 August 1998) is a German tennis player. He has a career high ATP singles ranking of world No. 343, achieved on 9 May 2022, and a career high doubles ranking of No. 463, achieved on 19 August 2019.
In January 2022, Rosenkranz won his first ATP Challenger doubles title, defeating Matías Franco Descotte and Facundo Díaz Acosta at the 2022 Challenger de Tigre, partnering with Conner Huertas del Pino.[]
In the first-round qualifying match for the 2022 Mallorca Open, Rosenkranz scored his biggest win against world No. 25 Nikoloz Basilashvili in straight sets. He lost in the second qualifying round to Antoine Bellier.
He won his first ATP Challenger singles title at the 2024 Manzanillo Open defeating Venezuelan Gonzalo Oliveira.