| Mike Donnelly | |
| Office: | Oklahoma County Commissioner |
| Term Start: | 1934 |
| Term End: | 1948 |
| Office2: | 20th Mayor of Oklahoma City |
| Term Start2: | January 9, 1923 |
| Term End2: | April 4, 1923 |
| Predecessor2: | Jack C. Walton |
| Successor2: | O. A. Cargill |
| Birth Date: | 14 October 1880 |
| Birth Place: | Bucklin, Missouri, U.S. |
| Death Place: | Bethany, Oklahoma, U.S. |
| Resting Place: | Rose Hill Burial Park |
| Signature: | Signature of Mike Donnelly (1880–1972).png |
Mike Donnelly Sr. (1880–1972) was an American politician who served as Mayor of Oklahoma City in 1923, succeeding Mayor Jack C. Walton who'd been elected governor.
Mike Donnelly was born on October 14, 1880, in Bucklin, Missouri.[1] He moved to Oklahoma City in 1904 and served as the mayor of Capitol Hill before its annexation by Oklahoma City. He succeeded Jack C. Walton as Mayor of Oklahoma City, serving between January 9, 1923, and April 4, 1923. He later served as an Oklahoma County Commissioner between 1934 and 1948.[2] He also worked for the Oklahoma Highway Department for 16 years.[3]
He died on September 12, 1972, in Bethany, Oklahoma.[4] He was entombed at Rose Hill Burial Park in Oklahoma City.[5]