| 1888 presidential election | |
  Nominees Cleveland and Thurman | |
| Convention | |
|---|---|
| Date(s) | June 5–7, 1888 |
| City | St. Louis, Missouri |
| Venue | Exposition Building |
| Candidates | |
| Presidential nominee | Grover Cleveland of New York |
| Vice-presidential nominee | Allen G. Thurman of Ohio |
The 1888 Democratic National Convention was a nominating convention held June 5 to 7, 1888, in the St. Louis Exposition and Music Hall in St. Louis, Missouri. It nominated President Grover Cleveland for reelection and former Senator Allen G. Thurman of Ohio for vice president.
St. Louis won the convention after a presentation in February 1888.