Four men were nominated for the Barclays Manager of the Season award for 2019/20.
Fans had until 18:00 BST on Monday 10 August to choose their favourite.
The votes from the public were combined with those of a panel of football experts to decide the winner.
The German delivered Liverpool's first-ever Premier League title in some style, with the Reds becoming the first team to cement top spot with seven matches to spare.
Klopp's five Barclays Manager of the Month awards in 2019/20 established another new high in the competition, while his side equalled other records by winning 18 matches in a row, securing 32 victories overall and amassing 55 points from a possible 57 at home.
Lampard secured a top-four finish in his first season as a Premier League head coach.
Rodgers secured Leicester City's second-highest finish in the Premier League as the Foxes came fifth and qualified for the UEFA Europa League.
He oversaw an eight-match winning streak, while his side's 9-0 triumph at Southampton was the biggest away win in the competition, and the joint-biggest victory overall.
Wilder's promoted side were fighting for European qualification rather than safety, picking up four points against each of Arsenal, Chelsea, Tottenham Hotspur and Wolverhampton Wanderers en route to a ninth-placed finish.
The Blades let in just 39 goals on their return to the Premier League, the fewest by a promoted club in the competition's history.