Platt
- Chickasaw National Recreation Area
- Low German
- Plait (disambiguation)
- Plat
- Plat (disambiguation)
- Platt (given name)
- Platt (surname)
- Platt Amendment
- Platt Brothers
- Platt Building
- Platt Fields Park
- Platt Island
- Platt Music
- Platt Technical High School
- Platt baronets
- Platt, Austria
- Platt, Florida
- Platt, Kent
- Platt, Texas
- Platt-LePage Aircraft Company
- Platte (disambiguation)
- Platts (disambiguation)
- Spirorchiidae