Loch Earn (Scots Gaelic, Loch Eire/Loch Éireann) is a freshwatter loch in the central hielands o Scotland, in the destricts o Pairth an Kinross an Stirlin.

Loch Earn
Loch Earn2.jpg
LocationScots Hielands
Coordinates56°23′N 4°14′W / 56.383°N 4.233°W / 56.383; -4.233Coordinates: 56°23′N 4°14′W / 56.383°N 4.233°W / 56.383; -4.233
TeepFreshwatter loch
Primar ootflowsRiver Earn
Basin kintrasUnitit Kinrick
Max. lenth10.5 km
Max. weenth1.2 km
Max. deepth87 m
IslandsNeish Island
SettlementsLochearnhead St Fillans