The central defender has agreed a five-year deal, joining for an undisclosed fee after Hull’s relegation from the Premier League in 2016/17.
"Once I had my eyes on this club, I always wanted to join," Maguire told lcfc.com. "Thankfully I’m here so I can’t wait to get the season started and kick on."
The 24-year-old made 29 PL appearances last season and scored two goals.
(Photo courtesy of Plumb Images/Getty)