The title of the biggest club in the history of the Premier League is widely shared between Manchester United and Liverpool, both of which command unparalleled global fanbases, massive commercial valuations, and extraordinarily rich trophy cabinets. Manchester United boasts a record number of league titles and decades of worldwide marketing expansion under legendary management, while Liverpool holds an iconic legacy of domestic and European dominance featuring multiple Champions League triumphs. Although financial powerhouses like Manchester City have scaled new heights in the modern era, Manchester United and Liverpool remain the foundational global giants of English football.