The World Correspondence Chess Championship determines the World Champion in correspondence chess. Men and women of any age are eligible to contest the title. The official World Correspondence Chess Championship is managed by the International Correspondence Chess Federation (ICCF).

Correspondence chess is chess played by various forms of long-distance correspondence, traditionally through the postal system. Today it is usually played through a correspondence chess server, a public internet chess forum, or email. Less common methods that have been employed include fax, homing pigeon and phone. It is in contrast to over-the-board (OTB) chess, where the players sit at a chessboard at the same time, or play each other in real time via the internet.