| NGC 4100 | |
| Z: | 0.003582 |
| H Radial V: | 1,072 ± 6 km/s |
| Group Cluster: | NGC 3992 group |
| Type: | SAbc |
| Appmag B: | 11.7 |
NGC 4100 is a spiral galaxy in the northern constellation of Ursa Major. It was discovered by William Herschel on Mar 9, 1788. This galaxy is a member of the NGC 3992 group in the Ursa Major Cluster.