Fergus may refer to:
Given name or surname
- Fergus (name), including lists of people and fictional and mythological characters
Places
- Fergus, Ontario, Canada
- River Fergus, County Clare, Ireland
- Lake Fergus, South Island, New Zealand
- Loch Fergus, South Ayrshire, Scotland
- Fergus County, Montana, United States
Other uses
- Cyclone Fergus, in the 1996–97 South Pacific cyclone season
- , a Royal Canadian Navy Second World War corvette
- , a US Navy attack transport ship of World War II
- Fergus (novel), by Brian Moore
- protagonist of Roman de Fergus, an Arthurian romance probably written at the beginning of the 13th century
See also
- Fergie (disambiguation)