Mario Party is a 1998 party video game developed by Hudson Soft and published by Nintendo for the Nintendo 64. The game was targeted at a young audience. Mario creator Shigeru Miyamoto served as development supervisor. It received mostly positive critical reviews for its multiplayer mode, concept, and music; disapproval of its slow pacing; and mixed reviews of its graphics. It is the first installment in the Mario Party series and was followed by Mario Party 2 in 1999. The game received its first official re-release on the Nintendo Switch Online + Expansion Pack in 2022.

Mario Party is a party video game series featuring characters from the Mario franchise in which up to four local players or computer-controlled characters compete in a board game interspersed with minigames. The games are currently developed by NDcube and published by Nintendo, being previously developed by Hudson Soft. 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 or CPUs.