Harker
- Dorsa Harker
- Fort Harker (Alabama)
- Fort Harker (Kansas)
- Hark (disambiguation)
- Harker (surname)
- Harker (video game)
- Harker Canyon (disambiguation)
- Harker Creek (disambiguation)
- Harker Glacier
- Harker Heights, Texas
- Harker Lake
- Harker Park Lake
- Harker Point
- Harker Run (West Virginia)
- Harker's Run (Ohio)
- Harker, Cumbria
- Harker, Florida
- Harkers Island, North Carolina
- Harkers, York
- Harkness (disambiguation)
- Mount Harker
- The Harker School
- Upper Harker Lake