Ingrid Marianne Lundquist (later "Grane", 24 July 1931 – 10 April 2020) was a Swedish freestyle swimmer who won a bronze medal in the 4 × 100 m relay at the 1950 European Aquatics Championships. She competed at the 1948 and 1952 Olympics in the 100 m, 400 m and 4 × 100 m events with the best result of sixth place in the relay in 1952. She died 10 April 2020 from COVID-19.