Marijke Moser, née Van de Graaf (born 1946) is a former Dutch-born Swiss middle and long distance runner.
From the age of five to twelve, Marijke van de Graaf lived with her parents in Indonesia, where her father was physician.
[2] In 1970 she married Albrecht Moser who was a member of the same athletics club as her in Hilversum in the Netherlands, after which the couple moved to Bern.
Having dual nationality, this made her the first Dutch and first Swiss woman to run the marathon under three hours.
[5] Her daughter, Mirja Jenni-Moser (de), also participated in the Morat-Friborg race in 2006 4, 35 years after the success of her mother Marijke Moser.