The Second Floor Mystery
- Blwyddyn: 1930
- Gwlad: United States of America
- Genre: Mystery, Comedy
- Stiwdio: Warner Bros. Pictures
- Allweddair: pre-code
- Cyfarwyddwr: Roy Del Ruth
- Cast: Grant Withers, Loretta Young, H.B. Warner, Claire McDowell, Sidney Bracey, Crauford Kent
