William O. Cromwell | |
|---|---|
| Attorney General of Oklahoma Territory | |
| In office January 5, 1906 – November 16, 1907 | |
| Appointed by | Frank Frantz |
| Succeeded by | Position disestablished |
| Personal details | |
| Born | November 20, 1860[1] |
| Political party | Progressive Party (1914) |
William O. Cromwell was an American politician who served as the last attorney general of Oklahoma Territory during the administration of Frank Frantz.[2]