Gerhard Grimmer was an East German cross-country skier who competed during the 1960s and 1970s. He won several medals at the FIS Nordic World Ski Championships, including golds in the 50 km and the 4 × 10 km relay ; silvers in the 30 km (1970), 4 × 10 km relay (1970), and 15 km (1974); and a bronze in the 50 km (1970). Grimmer also won the Holmenkollen ski festival at 50 km twice (1970–71). He competed at three Olympics and his best Olympic finish was fifth at the 1976 Winter Olympics in Innsbruck in the 50 km.