The bookie will continue to work as title sponsor of the Football League, which will be rebranded as the English Football League (EFL).
The betting firm will keep title sponsorship of the three divisions run by the EFL – the Championship, League One and League Two.
“At a time when The Football League is very much focused on its future, which includes our imminent re-branding to the EFL, it is a great encouragement to see Sky Bet putting their continued faith in our competition and our clubs,” Football League chief executive Shaun Harvey said.
“This is an excellent way to end an outstanding year of league football and, on behalf of the clubs, I would like to offer my appreciation to Sky Bet for their continued commitment,” he added.