Marynin may refer to the following places:
- Marynin, Kuyavian-Pomeranian Voivodeship (north-central Poland)
- Marynin, Gmina Siedliszcze in Lublin Voivodeship (east Poland)
- Marynin, Gmina Rejowiec in Lublin Voivodeship (east Poland)
- Marynin, Lublin County in Lublin Voivodeship (east Poland)
- Marynin, Łódź Voivodeship (central Poland)
- Marynin, Radzyń Podlaski County in Lublin Voivodeship (east Poland)
- Marynin, Grodzisk Mazowiecki County in Masovian Voivodeship (east-central Poland)
- Marynin, Grójec County in Masovian Voivodeship (east-central Poland)