Olin may refer to:
People
Organizations
OLIN, American landscape architecture firm
Olin Business School at Washington University in St. Louis
Olin College, an undergraduate engineering college in Massachusetts
Olin Corporation, a chemical corporation with a history of producing chemicals and ammunition Olin Edirne, the former name of Turkish basketball team Eskişehir Basket F. W. Olin Foundation, a foundation endowed by Franklin W. Olin John M. Olin Foundation, a foundation endowed by John M. Olin Preston and Olin Institute, a defunct Methodist boys' school now a part of Virginia Tech
Places
Olin, Iowa, a small city in the United States
Olin, North Carolina, an unincorporated community in the United States
Olin, Poland
Olin's Covered Bridge, the only bridge in Ashtabula county, Ohio named for a family Olin Observatory, an astronomical observatory in New London, Connecticut Olin Sang Ruby Union Institute, a Jewish overnight summer camp in Wisconsin
Fictional characters
Olin, a character on the TV series General Hospital
Gerald Olin, character in the 2007 film 1408 portrayed by Samuel L. Jackson
Other uses
Nahui Ollin, also spelled Ōlīn, a concept in Aztec mythology potentially related to Tōnatiuh Olin (spider), a spider genus in the family Trochanteriidae Olin Palladium Award, an award given by the Electrochemical Society Olin Raschig process, an industrial process for manufacturing hydrazine