Portland has many meanings.

It is the name of numerous cities, the largest of which are Portland, Oregon, and Portland, Maine, in the United States. It applies to people, buildings, passenger trains, ships and sports teams. It also applies to some more general topics. All these headings are listed below.

General:

• Portland cement is the most common type of cement in general construction usage
• Portland stone, limestone from the Jurassic period quarried on the Isle of Portland, Dorset
• Battle of Portland, naval battle of the First Anglo-Dutch War off Beachy Head in the English Channel

Cities and towns (by country):

In Australia:

• Portland, New South Wales, a small town with a cement works
• Portland, Victoria, a small regional city of 12,000 people.

In Canada:

• Portland Canal, inlet between southeastern Alaska and British Columbia
• Portland, Ontario, a small town north of Kingston

In Hong Kong:

• Portland Street, arguably the most famous red light district in Hong Kong

In Jamaica:

• Portland, Jamaica, parish, located on Jamaica's north-east coast

In New Zealand:

• Portland, Northland, a small town south of Whangarei
• Portland Island, a small island off the Mahia Peninsula.

In the United Kingdom:

• Isle of Portland, an island in the English Channel off the coast of Dorset
• Portland Castle, on the Isle of Portland
• Portland Harbour, a harbour between the Isle of Portland and the mainland
• Portland Place, street in the Marylebone district of central London

In the United States:

• Portland, Arkansas, a city of 552.
• Portland, Colorado, a city.
• Portland, Connecticut, a city of 8,732.
• Portland, Illinois, a city (now known as Blue Island) of 23,463.
• Portland, Indiana, a city of 6,437.
• Portland, Louisville, Kentucky, a neighborhood and former town in Louisville, Kentucky.
• Portland, Maine, a city of 64,249.
• Portland, Michigan, a city of 3,789.
• Portland, New York, a city of 5,502.
• Portland, North Dakota, a city of 604.
• Portland, Ohio, a city.
• Portland, Oregon, a city of 550,560.
• Portland, Pennsylvania, a city of 579.
• Portland, Tennessee, a city of 8,458.
• Portland, Texas, a city of about 15,000.
• Portland, Dodge County, Wisconsin, a city of 1,106.
• Portland, Monroe County, Wisconsin, a city of 686.
• New Portland, Maine, a city of 782.
• South Portland, Maine, a city of 23,324 adjoining Portland.

People:

• The Earl of Portland
• The Duke of Portland
• A somewhat common surname of people from the Anglo-Celtic Isles as well as an anglicized version of unrelated names from other places, such as the Tyrolean name Portolan.

Buildings:

• Portland Gallery, art gallery in Westminster, London
• Portland House, skyscraper in Westminster, London
• Portland Observatory, last remaining maritime signal tower in the United States in Portland, Maine
• Portland Public Service Building, building located in Portland, Oregon
• Portland House (2), at Welbeck DSFC

Passenger trains:

• The City of Portland, Union Pacific Railroad operated a passenger train beginning in 1935, ran between Chicago, Illinois and Portland, Oregon
• Portland and Ogdensburg Railway, planned railroad planned to connect Portland, Maine to Ogdensburg, New York
• Portland Streetcar, streetcar system in Portland, Oregon

Ships:

• SS Portland, a commercial vessel
• HMS Portland, British Navy ship
• USS Portland, United States Navy ship

Sports teams:

• Portland Trail Blazers, NBA basketball team based in Portland, Oregon
• Portland Winter Hawks, WHL hockey team based in Portland, Oregon
• Portland Beavers, PCL minor league baseball team based in Portland, Oregon
• Portland Lumberjax, NLL lacrosse team based in Portland, Oregon
• Portland Timbers, USL soccer team based in Portland, Oregon

Art & Music:

• A synth-pop band from Copenhagen

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