Canada edit

• Portsmouth, Kingston, Ontario

Dominica edit

• Portsmouth, Dominica

United Kingdom edit

• Portsmouth, West Yorkshire
• Portsmouth (UK Parliament constituency), a constituency abolished 1918

United States edit

• Portsmouth, Iowa
• Portsmouth, New Hampshire
• Portsmouth, North Carolina, a village
  • Portsmouth Island, North Carolina
• Portsmouth, Ohio
• Portsmouth, Portland, Oregon
• Portsmouth, Rhode Island
• Portsmouth, Virginia
• Portsmouth Township, Michigan
• Portsmouth Square, a park in San Francisco

• HMS Portsmouth, several ships with the name
• USS Portsmouth, several ships with the name
• United States lightship Portsmouth (LV-101)

• Portsmouth F.C., an English football club
• Portsmouth Spartans, a former professional American football franchise, now the Detroit Lions
• Portsmouth Invitational Tournament, a basketball tournament
• Portsmouth yardstick, a handicapping system for yacht racing

• "Portsmouth" (instrumental), an English folk tune
• Portsmouth Naval Shipyard, a U.S. Navy base in Kittery, Maine
• Treaty of Portsmouth, a 1905 treaty ending the Russo-Japanese War

• USS Portsmouth, a list of ships