The episodes from season three of MonsterQuest are listed below.
- Death of Loch Ness
- Cattle Killers
- Swamp Killer
- Devils in New Jersey
- Gators in the Sewer
- Snowbeast Slaughter
- Mega Jaws
- Monster Close Encounters
- Lake Demons
- Sea Monsters
- Mysterious Ape Island
- Gigantic Killer Fish II
- Isle of the Lost Tiger
- Killer Jellyfish
- Flying Monsters
- The Curse of the Monkey Man
- Killer Crocs
- The Last Dinosaur
- Critical Evidence
- The Real Cujo
- Terror From the Sky
- Killer Chimps in America
- Tigers in the Suburbs
- The Real Moby Dick
- The Abominable Snowman