Malmsten is a Swedish language surname which may refer to:
- Bengt Malmsten, Swedish Olympic speed skater
- Birger Malmsten, Swedish actor
- Bodil Malmsten, Swedish poet and novelist
- Carl Johan Malmsten, Swedish mathematician
- Eugen Malmstén, Swedish-Finnish musician and orchestra director
- Georg Malmstén, Swedish-Finnish singer and musician
- Gustaf Malmsten, Swedish Olympic athlete
- Mait Malmsten, Estonian actor
- Staffan Malmsten, Swedish sprint canoer