Nina Nittinger (born 16 June 1976) is a German former professional tennis player.

Nittinger reached a best singles ranking of 286 in the world and won two ITF titles.

She won a further five ITF titles in doubles.

All of her WTA Tour main-draw appearances were in doubles, with her best performance coming at the 1999 Croatian Bol Ladies Open, where she and partner Amanda Grahame were quarterfinalists.

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