Hungry Hungry Hippos is a tabletop game made for 2–4 players, produced by Hasbro, under the brand of its subsidiary, Milton Bradley. The idea for the game was published in 1967 by toy inventor Fred Kroll and it was introduced in 1978. The objective of the game is for each player to collect as many marbles as possible with their 'hippo' (a toy hippo model). The game is marketed under the "Elefun and Friends" banner, along with Elefun, Mouse Trap and Gator Golf. The game has been referenced in The Simpsons, the 2010 Disney Pixar movie Toy Story 3 and the 2001 cult film Donnie Darko. There is also a battle level based on the game in the 2016 Micro Machines game.
The game board is surrounded by four mechanical, colorful, plastic hippopotamuses operated by levers on their backs. When the lever is pressed, the hippo opens its mouth and extends its head forwards on a telescopic neck. When the lever is released, the head comes down and retracts. Colored plastic marbles are dispensed into the board by each player, and the players repeatedly press the lever on their hippo in order to have it "eat" the marbles, which travel down from under the hippo into a small scoring area for each player. Once all marbles have been captured, the player who has collected the most is the winner.