US Popularity Rank: 10959

Origin: Scottish

Meaning: Pup, whelp

Cailean is a boy’s name of Irish and Scottish origin. It’s the Scottish form of the Irish name Cuileán or Coileán, a personal name meaning “whelp” or “pup.” Anglicized as Colin, this name was mostly used by the Campbell clan, with its Irish version used mainly by the O’Dempsey family. Overwhelming cuteness is a trait that both puppies and babies have in common, making this a sweet and fitting name for your little one.