Gallup may refer to:
- Gallup, Inc., a firm founded by George Gallup, well known for its opinion poll
- Gallup (surname), a surname
- Gallup, New Mexico, a city in New Mexico, United States
- Gallup station, an Amtrak train in downtown Gallup, New Mexico
- Gallup International Association, a group of polling organizations registered in Zurich, Switzerland
- USS Gallup, various ships of the United States Navy
- Gallup Korea, a South Korean research company founded by Park Moo-ik