| Oliver Ocasek | |
| Office2: | 85th President of the Ohio Senate |
| Term2: | 1974–1980 |
| Predecessor2: | Ted Gray (pro Tempore) |
| Successor2: | Paul Gillmor |
| State Senate: | Ohio |
| State: | Ohio |
| District: | 27th |
| Term: | January 2, 1967 – December 31, 1986 |
| Preceded: | Districts Created |
| Succeeded: | Roy Ray |
| Party: | Democrat |
| Birth Date: | 2 November 1925 |
| Birth Place: | Bedford, Ohio |
| Death Place: | Akron, Ohio |
Oliver Robert Ocasek (November 2, 1925 – June 25, 1999) was an American politician of the Democratic party who served as President of the Ohio State Senate in the 1970s and 1980s.[1] After the Democrats lost their majority in the Senate, Ocasek was replaced as party leader by Harry Meshel. In 1962 and 1968, Ocasek ran for a seat in the United States House of Representatives. He lost both times to Republican incumbent William H. Ayres. In 1986 he lost a Democratic primary for congress in the 14th district to Thomas C. Sawyer.[2] Ocasek also served on the Ohio Board of Education from 1993 to 1998.[3]