Marcelin may refer to the following places:

• Marcelin, part of the Grunwald district of Poznań
• Marcelin, Łódź Voivodeship (central Poland)
• Marcelin, Masovian Voivodeship (east-central Poland)
• Marcelin, Saskatchewan, Canada
• Marcelin, West Pomeranian Voivodeship (north-west Poland)
• Marcelin, Saint-Louis-du-Sud, Haiti, a village in the Aquin arrondissement of Haiti.

• Basedi-ye Shahreyari
• Basedi-ye Shahriari
• Based on a novel
• Based on a True Story...
• Based on a True Story…
• Based On A T.R.U. Story
• Based on a TRU Story
• Based on a T.R.U. Story
• Based on Evil
• Basedow-Graves disease
• Basedow-Graves' disease
• Basedowia
• Basedowia (genus)
• Basedowia tenerrima
• Based Sky Black Death: Blue Lunar Night
• Base effect
• Base effect (inflation)
• Baseel Abdul Amir Saad
• Baseel Saad
• Bas Eenhoorn
• Base (EP)
• Base erosion and profit shifting
• Base Erosion and Profit Shifting (BEPS)
• Base exchange
• Base (exponentiation)