The 1988 Great Britain Lions tour was the Great Britain national rugby league team's 18th tour of Australasia and took place from May to July 1988. It started with a Test match against Papua New Guinea before the best-of-three series against Australia for the Ashes title, and finally a Test against New Zealand. Some of these matches counted toward the ongoing 1985–1988 World Cup tournament. An additional 13 matches were played against local club and representative sides from each host nation.

The Great Britain national rugby league team represents Great Britain in rugby league. Administered by the Rugby Football League (RFL), the team is nicknamed The Lions.