Sir Alex Ferguson's tenure at Manchester United saw him win 13 Premier League titles, a record that places him at the pinnacle of managerial achievement in English football's top flight. His dominance during the first two decades of the Premier League era is unparalleled, with his title haul more than double that of any other manager in the competition's history.

Ferguson, who retired in 2013, consistently rebuilt his Manchester United squads to maintain their success. From the era of Eric Cantona to the 1999 treble-winning team, and later with the attacking trio of Cristiano Ronaldo, Wayne Rooney, and Carlos Tevez, he steered the club through multiple successful phases. Even after the departure of key players like Ronaldo in 2009, Ferguson continued to secure league titles.

His record of 13 championships stands significantly above other decorated managers. Pep Guardiola, Liverpool's Bob Paisley, and George Ramsay for Aston Villa are noted as being next on the list with six titles each. This exceptional record solidifies Ferguson's position as the undisputed number one in Premier League managerial history.

Thirteen managers in total have won the Premier League title, with rankings assessing their contributions to the competition over its history. The list includes figures such as Pep Guardiola and Jose Mourinho, but Ferguson's achievement remains unmatched.