Kaltouma Nadjina (born November 16, 1976) is a Chadian sprinter. Her specialities are the 200 and 400 metres, and she holds Chadian records in those events, the 100 m, and the 800m. She won the 200 m events at the 2001 Jeux de la Francophonie held in Ottawa, Ontario, Canada and the 200 and 400 m in the 2002 African Championships held in Tunis.