Go Fish is a standard deck playing card game and is one of the first card games taught to children in the United States.

Players are seeking to complete books consisting of four of the same number cards. After dealing cards to each player, players take turns asking another player if they have a card matching one in their hand. If a player has the requested card type, they give them to the asking player, and the asking player asks for a type of card from any other player again. If a player doesn't have the card requested, they say 'Go Fish' and the asking player draws from the draw pile. A draw which results in the last card asked for or in a complete book means the asking player gets another turn.