The Siamese Twin Mystery
First US edition | |
| Author | Ellery Queen |
|---|---|
| Language | English |
| Series | Ellery Queen mysteries |
| Genre | Mystery novel / whodunnit |
| Publisher | Stokes (US) Gollancz (UK) |
Publication date | 1933 |
| Publication place | United States |
| Media type | |
| OCLC | 1506529 |
| Preceded by | The American Gun Mystery |
| Followed by | The Chinese Orange Mystery |
The Siamese Twin Mystery (subtitled A Problem in Deduction) is an English language American novel written in 1933 by Ellery Queen. It is the seventh of the Ellery Queen mysteries.