A language creator, sometimes referred to as a conlanger (/ˈkɒnlæŋər/), is a person who invents constructed languages (or "conlangs").

Professional language creators

Individuals who have been hired to create languages.

Published international auxiliary language creators

Individuals who have created languages intended for international communication.

Published zonal auxiliary language creators

Individuals who have created zonal auxiliary languages intended to facilitate communication speakers of a certain group of closely related languages.

Published fictional language creators

Language creators whose work has been published in books or other media that they created:

Published engineered language creators