| Monticello Conte Otto | |
| Official Name: | Comune di Monticello Conte Otto |
| Coordinates: | 45.6°N 46°W |
| Region: | Veneto |
| Province: | Vicenza (VI) |
| Frazioni: | Cavazzale, Vigardolo |
| Mayor: | Claudio Benincà |
| Area Total Km2: | 10 |
| Population Total: | 9098 |
| Population As Of: | 31 December 2015 |
| Population Demonym: | Monticellesi |
| Elevation M: | 42 |
| Postal Code: | 36010 |
| Area Code: | 0444 |
Monticello Conte Otto is a town and comune in the province of Vicenza, Veneto, Italy. It is east of the SP248 provincial road.
The main attraction is the Villa Valmarana Bressan, attributed to Andrea Palladio.