|OS grid reference|
|Sovereign state||United Kingdom|
|Post town||Fort William|
|Postcode district||PH33 7|
Fassfern (Scottish Gaelic: An Fasadh Feàrna) is a hamlet on the north shore of Loch Eil in the Scottish Highlands, at the bottom of Glen Suileag and almost opposite Duisky. Historically it was spelled Fassiefern and comprised part of Clan Cameron territory. It is just off the A830 from Fort William to Mallaig, and about 6 miles (10 km) west of Fort William in Lochaber, and is in the Scottish council area of Highland.