Deadwood may refer to:
- in geography
- Deadwood, Alberta, hamlet in Alberta, Canada
- Deadwood, California (disambiguation), several unincorporated communities in California, United States
- Deadwood, Oregon, unincorporated community in Oregon, United States
- Deadwood, South Dakota, city in South Dakota, United States
- Deadwood, Texas, unincorporated community in Texas, United States
- Deadwood River, tributary of the Dease River in northern British Columbia, Canada
- Deadwood, British Columbia, Ghost town in British Columbia.
- other uses
- Deadwood (game), board game
- "Deadwood" (Garbage song), song by the rock group Garbage
- "Deadwood" (Dirty Pretty Things song), song by Dirty Pretty Things
- Deadwood, shipbuilding term
- Deadwood (TV series), HBO television western drama set in Deadwood, South Dakota
- "Deadwood" (Deadwood episode), the first episode of the series
- Deadwood (film), a 2007 British horror film