Laggan (Lagan, Gaelic for 'little hollow') may refer to:
Scotland Laggan, Badenoch Laggan, Great Glen (consisting of North Laggan and South Laggan) Laggan, Islay Laggan Dam on the River Spean south west of Loch Laggan Kinloch Laggan, hamlet at the north end of Loch Laggan Loch Laggan, Highland River Laggan, Islay
Outside Scotland Laggan, New South Wales, Australia Laggan, County Donegal, Ireland, see Porthall Lagganstown, County Tipperary, Ireland Lake Louise, Alberta, formerly named Laggan
Other uses Laggan Army
See also Lagan (disambiguation)