Northrup
- Anson Northup
- Bruce Northrup
- Christiane Northrup
- David Northrup
- Edwin Fitch Northrup
- Harry Northrup
- Jim Northrup (baseball)
- Jim Northrup (writer)
- Leonard L. Northrup Jr.
- Northrop (disambiguation)
- Northrop Corporation
- Northrop Grumman
- Northrup Hill School District 10
- Northrup R. Knox
- Northrup-Gilbert House
- Northrup-King
- Palmer-Northrup House
- Phil Northrup
- Samuel Northrup
- Sara Northrup Hollister
- Solomon Northup
- Stephen Northup House
- Theodore Havermeyer Northrup
- Tony Northrup
- William Barton Northrup