| State: | MEX |
| Type: | FH |
| Route: | 55D |
| Maint: | Secretariat of Communications and Transportation |
| Length Km: | 152.12 |
| Length Round: | 2 |
| Length Ref: | [1] |
| Direction A: | North |
| Terminus A: | in Atlacomulco |
| Direction B: | South |
| Terminus B: | near Ixtapan de la Sal |
| Previous Type: | FH |
| Previous Route: | 55 |
| Next Type: | FH |
| Next Route: | 57 |
Federal Highway 55D (Carretera Federal 55D) is a part of the federal highways corridors (Spanish; Castilian: los corredores carreteros federales) of Mexico as an autopista. The highway connects Atlacomulco to the north and Toluca to the south.