Portsmouth (disambiguation)

Canada

 * The former village Portsmouth which is now part of Kingston, Ontario

Dominica

 * Portsmouth, Dominica, second-largest town on Dominca Island

England

 * Portsmouth, Hampshire

United States

 * Portsmouth, Iowa
 * Portsmouth, New Hampshire
 * Portsmouth, North Carolina, a village on Portsmouth Island, North Carolina
 * Portsmouth, Ohio
 * Portsmouth, Rhode Island
 * Portsmouth, Virginia, an independent city
 * Portsmouth Township, Michigan