The Roman Hat Mystery
First edition cover (US) | |
| Author | Ellery Queen |
|---|---|
| Language | English |
| Series | Ellery Queen mysteries |
| Genre | Mystery novel / Whodunnit |
| Publisher | Frederick A. Stokes (1st edition, USA); Gollancz (1st edition, UK) |
Publication date | August 15th 1929 (1st US edition) |
| Publication place | United States |
| Media type | |
| OCLC | 5220723 |
| Followed by | The French Powder Mystery |
The Roman Hat Mystery (subtitled A Problem in Deduction) is a novel that was written in 1928 and published in 1929 by Ellery Queen. It is the first of the Ellery Queen mysteries.