Ursula Gläser is a retired East German slalom canoeist who competed in the 1950s and 1960s. She won five medals at the ICF Canoe Slalom World Championships with four golds (K-1: 1965, K-1 team: 1965, Folding K-1 team: 1959, 1963) and a silver (Folding K-1: 1963).