| Official Name: | Dewey, Washington |
| Pushpin Map: | Washington |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Washington |
| Subdivision Type2: | County |
| Subdivision Name2: | Skagit |
| Timezone: | Pacific (PST) |
| Utc Offset: | -8 |
| Timezone Dst: | PDT |
| Utc Offset Dst: | -7 |
| Elevation Ft: | 46 |
| Coordinates: | 48.425°N -122.6086°W |
| Area Code: | 360 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1512147 |
Dewey (also Gibraltar) is an unincorporated community in Skagit County, Washington, United States.
The community was originally called Deception, then Fidalgo City and renamed in 1898 after George Dewey, a naval officer in the Spanish–American War.[1] An interurban railway was completed between Anacortes and Fidalgo City in 1891 with the sole purpose of securing land grants, as it ran with a minimum number of trips before ceasing operations.[2]