Caijsa Wilda Hennemann (born 22 March 2001) is a Swedish professional tennis player.

Her favourite tennis player was Maria Sharapova.

She managed to reach the final of the European Tennis Championship both as a 16- and 18-year-old.

Played all junior Grand Slam tournaments, and in 2019 advanced to the quarterfinals of the French Open, where she lost to Zheng Qinwen in three sets.

Hennemann made her WTA Tour main-draw debut at the 2019 Swedish Open, after receiving a wildcard into the singles draw and the doubles draw, partnering Lisa Zaar.