Grin
Grin as first name:
Grin as a family name:
- Alexander Grin (1880–1932), Russian writer
- Êlda Grin (1928–2016), Soviet and Armenian psychologist and writer
- François Grin (* 1959), Swiss economist and linguist
- Jean-Pierre Grin-Hofmann (* 1947), Swiss politician
- Juri Grin (* 1955), physicist, director at the Max Planck Institute for Chemical Physics of Solids
- Wolfgang Grin (* 1966), Austrian doctor and writer
Grin as a pseudonym:
- Alexander Pawlowitsch Guljajew (1908–1998), Soviet chess composer
Grin as the company name:
GRIN as an abbreviation:
- Germplasm Resources Information Network
- Global Raptor Information Network
- Gradient index lens, a component of gradient optics
- official abbreviation for "Great Images in NASA "