English / Gaelic roots
Clancy is an Irish surname that originated from the Gaelic word O'Cleirigh, which means descendant of Cleireach, a personal name that means clever or bright. Clancy is a popular name in Australia, particularly in New South Wales and Victoria, where it has been consistently ranked among the top 100 names for boys since the 1940s. Clancy is also a common name in the United States, where it has been consistently ranked among the top 1000 names for boys since the late 1800s. Clancy has been used as a given name and a nickname for people with the surname Clancy, as well as for people with other surnames such as Clancey, Clanchy, or Clanahan. Clancy has been associated with several notable people, including Tom Clancy, the American author of thriller and espionage novels, and Jack Clancy, the Australian rules footballer. Clancy has also been used as a place name, such as Clancy, Montana, a small town in the United States. Clancy has been used as a name for fictional characters, such as Detective Clancy in the TV show The Closer and Captain Clancy in the video game Call of Duty: Modern Warfare 3. Clancy has been used as a brand name, such as Clancy's, a popular restaurant chain in the southern United States known for its fried chicken and biscuits. Clancy has been used as a nickname for people with the name Clarence, such as the American musician Clarence Clancy Williams. Clancy has been used as a name for animals, such as Clancy the polar bear, who was a popular attraction at the San Diego Zoo in the 1960s and 1970s.