Grandma's Boy
- Gore: 2006
- Nyika: United States of America
- Genre: Comedy
- Studio: 20th Century Fox, Happy Madison Productions, Level 1 Entertainment, Summit Entertainment
- Keyword: video game, grandparent grandchild relationship, roommates, cannabis, rivalry, pot smoking, bong, marijuana, man child, male masturbation, stoner, older woman younger man relationship, grandmother, game tester, game design, weed, stoner movie
- Mutungamiriri: Nicholaus Goossen
- Cast: Allen Covert, Linda Cardellini, Peter Dante, Shirley Knight, Joel David Moore, Kevin Nealon