Settlers of Catan is a multiplayer board game designed by Klaus Teuber. It was first published in 1995 in Germany by Franckh-Kosmos Verlags-GmbH & Co. (Kosmos) under the name Die Siedler von Catan.

Settlers was the first German-style board game to achieve popularity outside Europe, and has been called the "killer app" of designer board games.[1]Over 11 million games in the Catan series have been sold,[2] and the game has been translated into twenty-five languages from the original German[citation needed]. The game has rapidly become popular in part because its mechanics are relatively simple, while its dynamics are quite complex.[3] The game is well suited for family play, since no one gets eliminated, and players who are behind can strive towards goals that are within their reach.

The standard game and its many expansions are available from Mayfair Games in the United States, from Capcom in Japan, Kosmos and 999 Games in the European Union, Devir in Spain, Portugal and Latin America, and Strategy Games in Canada.