Masin may refer to:
Places
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Kampong Masin, a Bruneian village
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Masin (island), an island in the Philippines
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Masin, Iran, an Iranian village
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Masin District, a Peruvian administrative subdivision
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Masin, Peru, the capital of
Masin District
Other
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Mašín Mašín () is a Czech surname, derived from the given name Mašín, which is a pet form of Matěj, a variant of Matthew.''Dictionary of American Family Names''"Mašín Family History" Oxford University Press, 2013. Retrieved on 19 January 2016. It ...
, Czech surname
{{dab, geo, surname