| Grassobbio | |
| Official Name: | Comune di Grassobbio |
| Coordinates: | 45.65°N 52°W |
| Region: | Lombardy |
| Province: | Bergamo (BG) |
| Mayor Party: | Lega Salvini |
| Mayor: | Manuel Bentoglio |
| Area Total Km2: | 8.74 |
| Population Footnotes: | http://demo.istat.it/bilmens2019gen/index.html |
| Population Total: | 6487 |
| Population As Of: | 31 December 2019 |
| Population Demonym: | Grassobbiesi |
| Elevation M: | 225 |
| Istat: | 016117 |
| Saint: | St. Alexander |
| Day: | 26 August |
| Postal Code: | 24050 |
| Area Code: | 035 |
Grassobbio (Bergamasque: Grahòbe or Grassòbe) is a municipality (comune) in the Province of Bergamo, which consists of 6487[1] inhabitants, in the Italian region of Lombardy. Grassobbio is located in the orographical right side of Serio river and around 8.5km from the main city of Bergamo.
Grassobbio borders the following municipalities: Cavernago, Orio al Serio, Seriate, Zanica.
In the mid 70’s, the now multinational chemical manufacturer Sigma Chemicals Company built its second plant in Grassobbio, after starting in Mozzo.[2]