Brendan Rodgers, David Gray, and John McGlynn are on the shortlist for PFA Scotland’s Manager of the Year award.
Celtic boss Rodgers last won the award after an invincible treble in the 2016-17 season, and his side are on the brink of another domestic clean sweep.
A win against Aberdeen in the Scottish Cup final next month would add to the League Cup and Premiership title already won by Rodgers and his team, as well as the improvement in their Champions League results.
Gray, 36, is in his first season as manager of Hibernian and after a difficult start when his team were bottom of the league, has them in third place and in pole position for European football.
Hibs equalled a club record of 17 league games unbeaten to leap up the table from December before last weekend’s 1-0 defeat by Aberdeen at Pittodrie, and have defeated every side except St Mirren in the Premiership this season.
Meanwhile Falkirk manager McGlynn, having won the award last season for guiding Falkirk to an unbeaten League 1 triumph, has them on the verge of back-to-back promotions.
If they equal Livingston’s result on Friday night when they play Hamilton, Falkirk will return to the Premiership for the first time since 2010.
The PFA Scotland women’s manager of the year shortlist has also been announced.
Rangers’ Jo Potter, Hibernian’s Grant Scott, Glasgow City’s Leanne Ross, and Motherwell’s Paul Brownlie are the coaches voted for by their peers.
Potter, Scott, and Ross have their sides battling for the SWPL title in a tight race with five games to go, while Rangers have already won the SWPL Cup and face Glasgow City in next month’s Scottish Cup final.
Brownlie, meanwhile, helped Motherwell to a top-six finish and the semi-finals of the Scottish Cup, where they were beaten 4-0 by City.
The winners of both awards, as well as the PFA’s player awards, are announced at a dinner on Sunday 4 May.