| Grumo Nevano | |
| Coordinates: | 40.9333°N 30°W |
| Region: | Campania |
| Metropolitan City: | Naples (NA) |
| Mayor: | Gaetano Di Bernardo |
| Area Total Km2: | 2.9 |
| Population Footnotes: | [1] |
| Population Total: | 18058 |
| Population As Of: | 31 August 2015 |
| Population Demonym: | Grumesi, Nevanesi |
| Elevation M: | 53 |
| Saint: | San Tammaro |
| Day: | 16 January |
| Postal Code: | 80028 |
| Area Code: | 081 |
Grumo Nevano is a comune (municipality) in the Metropolitan City of Naples in the Campania region of Italy, with 17,939 inhabitants.
Bordering the Province of Caserta and located 11km (07miles) north of the Metropolitan City of Naples, Grumo Nevano is an urban municipality of the Campana lowland. It is made up of the two areas (not frazioni) of Grumo and Nevano, united by urban planning for two centuries and under the administrative one since the 20th century. Grumese territory stands between NaNm (-2,147,483,648feet) above sea level.
The name of Grumo comes from the Latin, meaning 'cluster' or 'heap' (of houses), whereas the name of Nevano comes from, which was a property of the Naevia gens.
Before 1863 Grumo and Nevano were two different farmhouses: Grumo included the southern area of the municipality (up to the Basilica of San Tammaro) whereas Nevano included the northern area. In 1700 maps it appeared as Grumi.
Grumo Nevano, like all the other municipalities in the northern area of Naples, has Oscan origins. Some Samnite graves were casually found within the residential area during the 1960s and 1970s and two Latin inscriptions are evident, probably from Atella.