Gina Marie Dittmann (born 10 September 2002) is a German tennis player.
She has career-high WTA singles ranking of world No. 744, achieved on 19 May 2025, and a best doubles ranking of No. 415, reached on 5 May 2025.
Dittmann played college tennis for the Northern Arizona University, Lumberjacks women's tennis team from 2020 to 2022 and for the North Carolina State University, Wolfpack from 2022 to 2024.
In August 2024, she played in the doubles final at the ITF W50 Tournament in Meerbusch, Germany. She was defeated by the Belgian duo of Magali Kempen and Lara Salden.
In April 2025, she played the biggest final of her career in Spain. She became the champion in doubles with her Belgian partner Jana Otzipka at the ITF W50 Yecla. With her title win, she reached a new career-high doubles ranking of No 415.