The Rugby League European Championship (formerly known as the European Cup and European Nations Cup) is a rugby league football tournament for European national teams that was first held in 1935.

Originally, the European Cup had three teams, with England, Wales and France each playing each other once. Unlike the Tri-Nations series, there was no final; the team finishing at the top of the group was deemed the winner. From 1949 to 1956, a fourth Other Nationalities team entered the European Cup.

In 2003 the tournament rights were acquired by the European Rugby League and saw an expansion of the tournament reflecting the then recent growth of the sport across Europe.

The Rugby League European Championships was originally a tri-nations tournament between England, Wales, and France playing each other in a single round robin. The tournament was played annually, with the exception of the years of the Second World War.

In 1946–47, the tournament was altered, with each team playing each other twice, home and away.

The 1949–50 tournament saw return to single round robin format. The tournament also saw the Other Nationalities team brought out of hiatus for the first time since the 1930s. This team consisted of players who were not English, Welsh, or French playing in the British and French leagues.

The 1955–56 tournament had no Welsh team, though Welsh players featured for Other Nationalities.

The tournament was not played again until 1969–70, and not again until 1975 with the original three-team format.