The Goat Puzzle (also known as The Infamous Goat Puzzle, The Infamous Goat, The Wretched Goat, The Goat of Lochmarne, or simply The Goat) is a puzzle featured in Revolution Software's 1996 point and click adventure game Broken Sword: The Shadow of the Templars. In the puzzle, protagonist George Stobbart must gain access to an underground dig located in a castle in Lochmarne, Ireland, while avoiding a fierce goat. The puzzle's perceived difficulty is due to it requiring the player to think in a different way to their approach to previous puzzles in the game. Many gamers and critics consider it to be one of the hardest video game puzzles of all time.
The puzzle was simplified in The Shadow of the Templars' 2009 director's cut.