Mario Party (マリオパーティ, Mario Pāti^?) is a party video game series featuring Mario series characters in which four human- or computer-controlled characters compete in a board game interspersed with minigames. The series was developed by Hudson Soft and published by Nintendo; the arcade version was developed by Capcom. The series is known for its party game elements, including the often-unpredictable multiplayer modes that allow play with up to four (and sometimes eight) human players.

After the development of Mario Party 8, several of Hudson Soft's key designers left to work for Nintendo subsidiary Nd Cube, developers of Wii Party. Starting in 2012 with Mario Party 9, Nd Cube has taken over development of the series from Hudson Soft.

The series currently holds the record for the longest-running mini game series.

At E3 2011, Mario Party 9 was announced for the Wii. It was released in March/April 2012.

Over the course of the Mario Party incarnations, gameplay has changed to suit the technology of the hardware, and there are also several modes available for play in each game, each of which provides its own rules and challenges.

Mario (マリオ, Mario^?) is a fictional character in the Mario video game franchise by Nintendo, created by Japanese video game designer Shigeru Miyamoto. Serving as Nintendo's mascot and the eponymous protagonist of the series, Mario has appeared in over 200 video games since his creation. Though originally only appearing in platform games, starting with Donkey Kong, Mario currently appears in varied video game genres such as racing, puzzle, party, role-playing, fighting, and sports.

Mario is depicted as a short, pudgy, Italian plumber who lives in the Mushroom Kingdom. He repeatedly rescues Princess Peach from the turtle-like villain Bowser and stops his numerous plans to destroy him and take over the kingdom. Mario also has other enemies and rivals, including Donkey Kong and Wario. Since 1995, he has been voiced by Charles Martinet.

As Nintendo's mascot, Mario is said to be the most famous character in video game history.Mario games, as a whole, have sold more than 210 million units, making the Mario franchise the best-selling video game franchise of all time. Outside of the Super Mario platform series, he has appeared in video games of other genres, including the Mario Kart racing series, sports games, such as the Mario Tennis and Mario Golf series, role-playing video games such as Paper Mario and Super Mario RPG, and educational games, such as Mario is Missing! and Mario's Time Machine. He has inspired television shows, film, comics, and a line of licensed merchandise.