Britt Biltoft Raaby (born 20 January 1978 in Guldager, Esbjerg) is a former freestyle swimmer from Denmark, who represented her native country at the 1996 Summer Olympics in Atlanta, Georgia.
A member of swimming club Hjerting Idrætsforening she is best known for winning the bronze medal at the 1997 European Championships (LC) in the women's 4×200 m freestyle, alongside Ditte Jensen, Berit Puggaard, and Mette Jacobsen.