See also: List of poker variants and Category:Poker variants

Poker is a family of gambling games in which players bet into a pool, called the pot, that the value of their hand will beat all others according to the ranking system. Variants largely differ on how cards are dealt and the methods by which players can improve a hand. For many reasons, including its age and its popularity among Western militaries, it is one of the most universally known card games in existence.