Arnie may refer to:
- Arnie (TV series), a 1970 television sitcom
- Arnold Schwarzenegger's nickname
- Arnee and the Terminaters, a one-hit wonder band that parodied Schwarzenegger and the "Terminator" character
- Arnie States, radio host on The Rob, Arnie, and Dawn Show
- Arnie (computer game), game featuring a soldier who battles through army camps
- "Arnie", a song by Primus from their 1997 album, Brown Album