| Theodor Anton Neagu | |
| Birth Date: | September 20, 1932 |
| Birth Place: | Giurgiu |
| Death Date: | March 5, 2017 |
| Death Place: | Bucharest |
| Nationality: | Romanian |
| Known For: | micropaleontology |
| Field: | paleontology |
Theodor Anton Neagu (September 20, 1932 – March 5, 2017[1]) was a Romanian micropaleontologist, stratigrapher, and, since 2001, titular member of the Romanian Academy.[2] Neagu specialized in Upper Cretaceous foraminifera found in strata of the Carpathian Mountains.