400 Arba3meyeh is an Arabic trick-taking multiplayer card game played in two partnerships, with trumps and bidding. It is one of the most popular card games in the Middle East.

The game is played by four players, two partners sitting opposite each other. A set of 52 cards is dealt with, one for each player. There are four tricks, which can be won by the highest card of the suit led or by the highest trump. Each player scores one point for each trick won. There are special rules for bidding, which can be used to enhance the chances of winning a trick.