| Official Name: | Mason, Nevada |
| Pushpin Map: | Nevada#USA |
| Pushpin Label: | Mason |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Nevada |
| Subdivision Type2: | County |
| Subdivision Name2: | Lyon |
| Timezone: | Pacific (PST) |
| Utc Offset: | -8 |
| Timezone Dst: | PDT |
| Utc Offset Dst: | -7 |
| Elevation Ft: | 4429 |
| Coordinates: | 38.95°N -119.1903°W |
| Area Code: | 775 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 848584 |
Mason is an unincorporated community in Lyon County, Nevada, United States.
A post office was established at Mason in 1908, and remained in operation until 1961. The community was named after Henry "Hock" Mason, a pioneer citizen.[1]