The 1970 Great Britain Lions tour was the Great Britain national rugby league team's 14th tour of Australasia and took place from May to August 1970. A total of 24 matches were played against local club and representative sides during the tour, including a three match Test match series against Australia and New Zealand respectively.
The tour was one of the most successful in Lions history, with the team winning all but two of the matches. It is also remembered for being the last time that Great Britain won an Ashes series against Australia.