Marsman is a Dutch surname. It is either an occupational surname, with the meaning "peddler, hawker", or a toponymic surname, with more or less the meaning "marsh man". People with the surname include:
- Gooitske Marsman, Dutch judoka
- Hendrik Marsman (1899–1940), Dutch poet and writer
- Hendrik Jan Marsman (1937–2012), Dutch writer, poet, novelist and translator known by his pen name J. Bernlef
- Margot Marsman (1932–2018), Dutch swimmer
- Nick Marsman, Dutch football goalkeeper
