Thirty Day Princess
- Jier: 1934
- Lân: United States of America
- Sjenre: Comedy, Romance
- Studio: Paramount Pictures, B.P. Schulberg Productions
- Keyword: princess, look-alike, loan, pre-code, impersonation
- Direkteur: Marion Gering
- Cast: Sylvia Sidney, Cary Grant, Edward Arnold, Henry Stephenson, Vince Barnett, Edgar Norton