Celtic manager Ronny Deila insists Virgil van Dijk does not want to leave the Scottish Premiership leaders in January.
Celtic boss Ronny Deila says keeping his best players will take priority over acquisitions in the transfer window.
The 26-year-old Ivorian was a free agent after leaving Tranmere for whom he made almost 150 appearances and scored five goals.
Foxes manager Nigel Pearson told the club website: "A number of clubs were interested in signing Zoumana this summer and we were one of those that had been monitoring him for a considerable period of time.
"I'm really pleased he's chosen Leicester City. It's important to us that we recruit players, not only with ability, but also with a desire to play for and work hard for this Football Club.
"He's a good player with a great attitude and I'm sure he'll fit in well with the current squad we have."
Bakayogo said: "This is a big club and a big challenge for me, stepping up into the Championship. I've taken the chance, I hope to have a good season this year and do well for the team.
"The Championship is a new league for me so I will have to work hard to catch up to the pace, but I'm looking forward to working with everyone."