Newcomb
- H. Sophie Newcomb Memorial College
- Newcomb (Martian crater)
- Newcomb (lunar crater)
- Newcomb (surname)
- Newcomb Art Museum
- Newcomb Bay
- Newcomb High School
- Newcomb House (disambiguation)
- Newcomb Pottery
- Newcomb Township, Champaign County, Illinois
- Newcomb ball
- Newcomb's paradox
- Newcomb, Maryland
- Newcomb, New Mexico
- Newcomb, New York
- Newcomb, Tennessee
- Newcomb, Victoria
- Newcomb–Tulane College
- USS Newcomb (DD-586)
- USS Simon Newcomb (AGSC-14)