Resident Alien may refer to:

• Resident alien, a non-citizen living in a country
• Resident Alien (album), a 1995 album by Spacehog
• Resident Alien (comics), a 2012 comic book series by Peter Hogan and Steve Parkhouse
  • Resident Alien (TV series), a 2021 TV series based on the comic book series
• Resident Alien (film), a 1990 documentary film

• Resident Aliens, a 1989 book by Stanley Hauerwas and William Willimon