Douglas (given name)Douglas (surname)Clan Douglas, a Scottish kindredEarl of Douglas, or any holder of the titleMarquess of Douglas, or any holder of the titleDuke of Douglas, or any holder of the titleLord Douglas (disambiguation), for holders of various titles
Places
AustraliaDouglas, QueenslandCanadaDouglas, New BrunswickDouglas, Ontario, a community in Admaston/Bromley townshipEnglandRiver Douglas (Lancashire)Falkland IslandsDouglas, Falkland IslandsIrelandDouglas, CorkIsle of ManDouglas, Isle of Man, the capital of the dependency, and seat of the House of KeysNew ZealandDouglas, TaranakiDouglas, CanterburyNorthern IrelandDouglas, County Antrim, a townland in County AntrimSouth AfricaDouglas, Northern CapeScotlandCastle Douglas, Dumfries and GallowayDouglas, South LanarkshireDouglas Castle, South LanarkshireDouglas Water, LanarkshireGlen Douglas, Argyll and ButeUnited StatesDouglas, AlabamaDouglas, AlaskaDouglas, ArizonaDouglas, GeorgiaDouglas, Chicago, IllinoisDouglas, IndianaDouglas, MassachusettsDouglas, MichiganDouglas, NebraskaDouglas, North DakotaDouglas, OklahomaDouglas, Wisconsin, a town
Douglas Center, Wisconsin, an unincorporated communityDouglas, Wyoming
Businesses
Douglas Aircraft CompanyVarious Douglas-built aircraftDouglas AG, European retail companyDouglas (motorcycles), British motorcycle manufacturer
Hospitals
Douglas Mental Health University Institute, a mental institution in Montreal, Quebec
Fiction
Donald and Douglas, engines from Thomas the Tank Engine and FriendsDoug, an animated television series on the Nickelodeon TV channel and later on Disney's 1 Saturday MorningDouglas (play), an 18th century tragedy by John HomeDouglas (film), a 1970 Norwegian film directed by Pål Bang-Hansen
Plants
The Douglas Iris, a wildflowerThe Douglas-fir, the common name for a type of coniferous tree
Sports
The Douglas GAA, a Gaelic Athletic Association club from Douglas, Cork, Ireland
Things
Douglas (locomotive), a preserved locomotive on the Talyllyn Railway in Wales