conlanger

[ kon-lang-er ]
/ ˈkɒnˌlæŋ ər /

noun

a person who creates a conlang, or artificially constructed language.

Origin of conlanger

First recorded in 2000–05; conlang + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019