Referee appointments for this weekend's games in the Ladbrokes Premiership, Championship and League 1.
There are no League 2 fixtures on Saturday due to the second round of the Scottish Cup.
Ladbrokes Premiership - Friday
St Johnstone v Rangers - Don Robertson (BT Sport, 7.45pm)
Ladbrokes Premiership - Saturday
Celtic v Dundee - Andrew Dallas
Hamilton Academical v Motherwell - Craig Thomson
Hibernian v Aberdeen - Steven McLean
Partick Thistle v Kilmarnock - Kevin Clancy
Ross County v Heart of Midlothian - Willie Collum
Ladbrokes Championship - Saturday
Brechin City v Morton - Colin Steven
Dumbarton v St Mirren - Alan Newlands
Falkirk v Inverness CT - Nick Walsh
Livingston v Dundee United - John Beaton
Queen of the South v Dunfermline Athletic - Stephen Finnie
Ladbrokes League 1 - Saturday
Ayr United v Airdrieonians - Steven Reid
East Fife v Albion Rovers - Craig Charleston
Queen's Park v Forfar Athletic - Alan Muir
Raith Rovers v Arbroath - Barry Cook
Stranraer v Alloa Athletic - David Munro
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