The name Langkawi is thought to have existed by the early 15th century, although in the 16th century the island of Langkawi was also marked on maps variously as Langa, Langka, Lansura, and Langapura.

There are many suggestions for the origin of the name of Langkawi. According to one interpretation, Langkawi means island of the reddish-brown eagle in colloquial Malay. The Malay word for eagle is helang - which is shortened to "lang", while kawi is the name of a red stone used as a chalk to mark goods.

This interpretation was used to create the landmark sculpture of an eagle as the symbol of Langkawi at Dataran Helang (Eagle Square) in Kuah.