The 1990–91 English Hockey League season took place from October 1990 until May 1991. The Men's National League was sponsored by Poundstretcher and was won by Havant. The top four teams qualified to take part in the Poundstretcher League Cup tournament which was won by Hounslow. The Women's National League was sponsored by Typhoo and was won by Slough. The Men's Hockey Association Cup was won by Hounslow and the Women's Cup (National Club Championship finals) was won by Sutton Coldfield.