Japanese submarine I-24 may refer to one of the following submarines of the Imperial Japanese Navy:
- Japanese submarine I-124, a Kiraisen-type submarine launched in 1927 and known as I-24 until June 1938; sunk in January 1942
- Japanese submarine I-24 (1939), a Type C submarine launched in 1939 and sunk in June 1943
This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.