Rainier
- Buick Rainier
- HMS Admiral Rainier (1800)
- Mount Rainier
- Mount Rainier (disambiguation)
- NOAAS Rainier
- Operation Plumbbob
- Project Rainier
- Rainer (disambiguation)
- Rainerius
- Rainier (Link station)
- Rainier (name)
- Rainier Beach, Seattle
- Rainier Brewing Company
- Rainier Club
- Rainier High School (disambiguation)
- Rainier Mesa
- Rainier Motor Car Company
- Rainier National Forest
- Rainier Valley, Seattle
- Rainier cherry
- Rainier, Alberta
- Rainier, Oregon
- Rainier, Washington
- Rayner (disambiguation)
- Raynor
- Reiner (disambiguation)
- Reyner
- Seattle Rainiers
- Tacoma Rainiers
- USS Rainier
- Visual Studio .NET