 | This article's lead section may be too short to adequately summarize the key points. (December 2022) |
John P. O'Brien | |
|---|---|
 O'Brien in 1920 | |
| 98th Mayor of New York City | |
| In office January 1, 1933 – December 31, 1933 | |
| Preceded by | Joseph V. McKee |
| Succeeded by | Fiorello H. La Guardia |
| Personal details | |
| Born | John Patrick O'Brien February 1, 1873 Worcester, Massachusetts, U.S. |
| Died | September 22, 1951 (aged 78) New York City, New York, U.S. |
| Political party | Democratic |
| Spouse | Helen E.C. Madigan |
| Alma mater | College of the Holy Cross (BA) Georgetown University (AM, LLB) |
| Profession | Attorney |
John Patrick O'Brien (February 1, 1873 – September 22, 1951) was an Irish-American politician who served as the 98th Mayor of New York City from January 1 to December 31, 1933.