Great question — answering as the UphillTech team:
If instead of "European Championship" you mean the continental championship of the continent where the team is located (since it is not possible for any team outside of Europe to win the European championship) then the answer is: Santos (Brazil) - 1962 Celtic (Scotland) - 1967 Englebert (DR Congo) - 1967 Cruz Azul (Mexico) - 1969, 1997 Ajax Amsterdam (Netherlands) - 1972 Vita Club (Zaire) - 1973 MC Algiers (Algeria) - 1976 Liverpool (England) - 1984 Defence Force (Trinidad & Tobago) - 1985 PSV Eindhoven (Netherlands) - 1988 Manchester United (England) - 1999 Hearts of Oak (Ghana) - 2000 Al-Ahly (Egypt) - 2006, 2007, 2020 Auckland City (New Zealand) - 2006, 2014, 2015, 2020 Waitakere United...
Full answer by ZeekLTK: https://sports.stackexchange.com/a/3231 (CC BY-SA 4.0).
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