Olin

Olin may refer to:

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

Fictional characters

 * Olin, a character on the TV series General Hospital
 * Gerald Olin, character in the 2007 film 1408 portrayed by Samuel L. Jackson
 * The Reverend Olin Blitch, lead bass-baritone role in the opera Susannah by Carlisle Floyd

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