Grin may refer to:
A facial expression, see smile
Grin (Coroner album), 1993
Grin (band), a band formed by Nils Lofgren
Grin (Grin album), 1971
Grin (surname)GRIN may refer to:
Germplasm Resources Information Network, a softwareShow more [+] roject
Grin (company), a defunct video game developer formerly based in Sweden
Grin (cryptocurrency), a minimal cryptocurrency based on the Rust programming language transaction format
GRIN Campaign, an organisation which campaigns for equality in education
GRIN, an acronym for gradient index; see Gradient-index optics
GRIN, an acronym for Genetic, Robotic, Information, and Nano technologies
Grand River Information Network, a Grand River Conservation Authority online mapping and data download tool
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