CA or ca may refer to:
Canada (Canadian French: [kanadɑ]) is a country located in the northern part of North America. Its ten provinces and three territories extend from the Atlantic to the Pacific and northward into the Arctic Ocean, covering 9.98 million square kilometres (3.85 million square miles), making it the world's second-largest country by total area.
California is a state in the Pacific Region of the United States. With 39.5 million residents, California is the most populous U.S.
A car (or automobile) is a wheeled motor vehicle used for transportation. Most definitions of car say they run primarily on roads, seat one to eight people, have four tires, and mainly transport people rather than goods.
Carol Susan Jane Danvers is a fictional superhero appearing in American comic books published by Marvel Comics.
The cat (Felis catus, or Felis silvestris catus, literally "woodland cat"), often referred to as the domestic cat to distinguish from other felids and felines, is a small, typically furry, carnivorous mammal.
Caitlyn Marie Jenner (born William Bruce Jenner on October 28, 1949) is an American television personality and retired Olympic gold medal-winning decathlete.
Catherine, Duchess of Cambridge (born Catherine Elizabeth Middleton; 9 January 1982), is a member of the British royal family.
Cambodia ( (listen); also Kampuchea ; Khmer: កម្ពុជា Khmer: [kam.pu.ciə]; French: Cambodge), officially the Kingdom of Cambodia (Khmer: ព្រះរាជាណាចក្រកម្ពុជា, prĕəh riəciənaacak kampuciə, IPA: [prĕəh riə.ciə.naː.caʔ kam.pu.ciə]; French: Royaume du Cambodge), is a country located in the southern portion of the Indochina peninsula in Southeast Asia.