Monster house may refer to:

• Monster House (U.S. TV series), a Discovery Channel series that ran from 2003–2006.
• Monster House (film), a 2006 animated film
  • Monster House (video game), a video game based on the film
• Monster House (Australian TV series), an Australian TV series that debuted in 2008

• Old Greyfriars, Edinburgh
• Old Greyhound Terminal (Washington, D.C.)
• Old Grimsby
• Old Grimsby harbour
• Old Grist Mill
• Old Groton Inn
• Old-Growth Forest Network
• Old-growth redwood
• Old growth redwood forest
• Old Guangde dialect
• Old-guard
• Old Guard (Australia)
• Old Guildford, New South Wales
• Old Guinea
• Old Gujarati
• Old Gulfport High School (Mississippi)
• Old Gym (Vanderbilt University)
• Old Habits (album)
• Old Habits (Smash Mouth album)
• Old Hachita
• Old Hachita, New Mexico
• Old Hag Attack
• Old Haileyburians
• Old Haileyburians (disambiguation)
• Old Halesonians RFC