| South Colby, Washington | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Washington#USA |
| Pushpin Label: | South Colby |
| Pushpin Map Caption: | Location in Washington and the United States |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Washington |
| Subdivision Type2: | County |
| Subdivision Name2: | Kitsap |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Pacific (PST) |
| Utc Offset: | -8 |
| Timezone Dst: | PDT |
| Utc Offset Dst: | -7 |
| Coordinates: | 47.5219°N -122.5372°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1512674[1] |
South Colby is an unincorporated community in Kitsap County, Washington, United States. It is located on Yukon Harbor, 2miles west of the Southworth Ferry Dock. From there, a ferry is available to Fauntleroy in the West Seattle neighborhood of Seattle. South Colby is part of the Southworth census-designated place.
Colby is a shortening and alteration of "Coal Bay".[2]