Robert Horn (or variants) may refer to:

• Robert Horn (water polo) (1931–2019), American water polo player
• Robert Horn (writer), American playwright and screenwriter
• Robert E. Horn (born 1933), American political scientist and professor
• Robbie Horn (born 1977), Scottish footballer
• Bob Horn (broadcaster) (1916–1966), radio and TV presenter
• Bob Horn (American football) (born 1954), National Football League linebacker

• Robert Horne (disambiguation)
• Robert Van Horn, American lawyer and publisher

This disambiguation page lists articles about people with the same name.
If an internal link led you here, you may wish to change the link to point directly to the intended article.