Rodgers left Celtic to take the job at the King Power Stadium after winning seven trophies during his three years with the dominant Scottish club, including domestic trebles in 2016/17 and 2017/18. Most recently, Celtic lifted the Scottish League Cup again in December.
The Northern Irishman has agreed a contract with the Foxes that will run until June 2022 and becomes the fifth man to take the reins at Leicester since the club's return to the Premier League in 2014 after Nigel Pearson, Claudio Ranieri, Craig Shakespeare and Puel.
Among his backroom staff Rodgers brings former Liverpool and Celtic player Kolo Toure as first team coach.
In the official statement on Leicester's website Rodgers said: “I’m very privileged and honoured to be here as Leicester City manager and I’ll give my life to make the supporters proud of their club.
"Together, we’ll be stronger and I’m looking forward to working with the players, staff and supporters to make the right steps forward.”
Brendan Rodgers will be at King Power Stadium for tonight’s Premier League visit of Brighton. He will take charge of the squad for the first time ahead of Sunday’s trip to Watford. #WelcomeBrendan pic.twitter.com/nFoiN81FLs— Leicester City (@LCFC) February 26, 2019
Leicester City Vice Chairman, Aiyawatt Srivaddhanaprabha, said: “I’m absolutely delighted to bring a manager of Brendan’s calibre to Leicester City and I look forward to seeing what he, our talented, young squad and our dedicated, skilled team of staff can achieve together.
“As projects, including the development of our new training ground and the proposed expansion of King Power Stadium continue to take shape, and as a young squad of great potential begins to mature, Brendan and his colleagues arrive at an exciting time for Leicester City. We’re continuing to grow as a Club and I am anticipating that Brendan’s coaching methods, knowledge and experience can enhance our journey.”
Having overseen Swansea's rise to the top flight in 2011, Rodgers last worked in the Premier League in 2015 when he was sacked by Liverpool. He had earlier seen the Reds narrowly miss out on the 2013/14 title to Manchester City but failed to kick on thereafter.
The 46-year-old was formerly a youth team coach at Chelsea earlier in his career and has also managed Watford and Reading to date.
Puel had taken Leicester from 18th place in the Premier League table when he took over last season to a ninth place finish, but the Frenchman was sacked a poor run of results left the club struggling to repeat that and looking at a bottom half finish that this season.