List of constructed languages

These are languages in actual religious use by their communities or congregations. ==Engineered languages==

Engineered languages are devised to test a hypothesis or experiment with innovative linguistic features. They may fall into one or more of three categories: philosophical, experimental and logical. Others ==Artistic/fictional languages==

Languages mainly used in fiction Constructed by J. R. R. Tolkien Tolkien's most prominent languages are: Film Games Internet-based Music Television Other literature Alternative languages Some experimental languages were developed to observe hypotheses of alternative linguistic interactions which could have led to very different modern languages. The following two examples were created for Ill Bethisad, an alternate history project. Micronational languages Personal languages == Constructed languages in Wikipedia ==

There is a version of Wikipedia in each of the following ten constructed languages. Eight of these languages are IALs (international auxiliary languages), while Lojban and Toki Pona are engineered languages. Until 2005, there were also versions of Wikipedia in the constructed languages Toki Pona and Klingon, but these have been deleted. Toki Pona Wiki project continued independently under the name "Wikipesija", and re-opened in 2025. ==See also==