All over the world, Calico (Calico 
, Джек 
, Calicot 
) is a rare dominantly masculine, but seldom girly forename. The first name Calico is habitual in Kazakhstan, where it is a very rare boy's name, Russia, where it is a very rare predominantly male, but very seldom female name, and Philippines, where it is a very rare masculine name. Not in comparison with a country's population, the name is most common in Russia, Indonesia, and the United States. More frequently, Calico is the last name as well as the forename.
Calico is also a prevalent name for the fictitious and mythical characters: Jack Bauer , the character from the television series 24; Jack Reacher , the fictional character, Jack Reacher; Captain Jack Sparrow , the fictional character and the protagonist of the Pirates of the Caribbean film series, Pirates of the Caribbean: On Stranger Tides; Jack Harkness , the fictional character of Doctor Who and Torchwood and Jack O'Neill , the fictional character from the Stargate universe, and in many other works.