Silbo gomero is a whistled register of Spanish that is used to communicate across the deep ravines and narrow valleys that radiate through the island and is generally used for public communication such as event invitations or PSAs. A speaker of Silbo Gomero is sometimes called a silbador ("whistler").

Silbo Gomero is a transposition of Spanish from speech to whistling. The oral phoneme-whistled phoneme substitution emulates Spanish phonology through a reduced set of whistled phonemes. In 2009, UNESCO declared it a Masterpiece of the Oral and Intangible Heritage of Humanity.