| Osman Şirin | |
| Native Name: | instead.--> |
| Office: | 8. First Vice-President of the Supreme Court (Criminal) |
| Term Start: | 25 October 2004 |
| Term End: | 5 November 2008 |
| Birth Date: | 5 November 1943 |
| Birth Place: | Vakfıkebir, Trabzon, Turkey |
Osman Şirin (born November 5, 1943, in Vakfıkebir, Trabzon Province), is a high-ranked Turkish judge. He was a member of the Turkish Court of Cassation from 1991 to 2008, from 2004 as Deputy First President. On 5 November 2008, he retired from the Court.