| Unit Name: | 4th Infantry Regiment (Imperial Japanese Army) |
| Type: | infantry |
| Branch: | Imperial Army of Japan |
| Dates: | 1871-1945 |
| Country: | Japan |
| Allegiance: | Emperor of Japan |
| Command Structure: | 2nd Division (Imperial Japanese Army) |
| Garrison: | Sendai |
| Battles: | Satsuma Rebellion
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The 4th Infantry Regiment was an infantry regiment in the Imperial Japanese Army. The regiment was attached to the 2nd Division. The regiment was raised at Sendai on 14 May 1888. The regiment participated in the Second Sino-Japanese War and The Pacific War.