Security guard may refer to the following:
- Security guard: A guard at a department store in the Scooby-Doo, Where Are You! episode Nowhere to Hyde.
- Security guard: A guard at Mammoth Studios in the The New Scooby-Doo Movies episode Sandy Duncan's Jekyll and Hyde.
- Security guard: A guard at KZZZ-TV in the The New Scooby and Scrappy Doo Show episode Scoobsie.
- Security guard 1: A guard at the Museum of Natural History in the direct-to-video film Scooby-Doo! and the Witch's Ghost.
- Security guard 2: A guard at the Museum of Natural History in the direct-to-video film Scooby-Doo! and the Witch's Ghost.
- Security guard: A guard at Indian Theater in DC Comics' Scooby-Doo story Return of the Star Dog.
- Security guard: The guards who work at Sherman-Tech Headquarters in Scooby-Doo! Mystery Mayhem in level 5 Hi-Tech Terror.
- Security guard: A guard at the International Dog Show in the What's New, Scooby-Doo? episode Homeward Hound.
- Security guard: A museum guard in DC Comics' Scooby-Doo story Let Liberty Scream!
- Security guard 1: A guard at the Hotel Canard in the direct-to-video film Scooby-Doo! Stage Fright.
- Security guard: An underground tunnel guard in the Scooby-Doo and Guess Who? episode Elementary, My Dear Shaggy!
- Security guard: A guard hired for a ventriloquist competition in the Scooby-Doo and Guess Who? episode Too Many Dummies!