Jim McIntyre has described being appointed Dunfermline's new manager as "an honour".
McIntyre has signed a two-and-a-half year deal with the Pars
McIntyre, who has been caretaker boss since Stephen Kenny left on 4 December, has signed a two-and-a-half year deal.
Pars chairman John Yorkston said: "Jim has the necessary drive and commitment to guide the club back to the SPL."
The Pars have climbed to fourth in the table after McIntyre steered them to their fourth straight win, with the 2-0 victory over Livingston on Wednesday.
In a club statement, McIntyre said he was "extremely honoured to have a club such as Dunfermline Athletic as his first managerial appointment".
Jim's professionalism has had an impact on the current squad
He added that he was "entirely focused on achieving success including a return to the SPL as soon as possible".
Yorkston said: "Under Jim's stewardship the club has moved from second bottom place in the First Division to fourth.
"He has enjoyed a number of years playing at the highest level.
"His professionalism has had an impact on the current squad who have rediscovered their competitiveness and their will to win matches.
"In addition to being first-team manager, he will also continue in his capacity as an important player for the club."
McIntyre added that he would announce his backroom staff within the next few days and may add to the squad during the January transfer window.
The former Rangers and Aberdeen defender Stephen Wright is expected to join the Dunfermline coaching staff.
Terry Butcher, John Robertson and former Pars player Ian Ferguson were also interviewed for the vacancy.
Dunfermline were relegated from the Scottish Premier League last season.
Kenny was sacked after a disappointing 15 months in charge and left the Pars second from bottom in the First Division.
The Irishman has since been re-appointed manager of former club Derry City.