Achi (Achí in Spanish) is a Mayan language very closely related to Kʼicheʼ (Quiché in the older orthography).

It is spoken by the Achi people, primarily in the department of Baja Verapaz in Guatemala.

One of the masterpieces of precolumbian literature is the Rabinal Achí, a theatrical play written in the Achi language.

The tables present the consonant[2] and vowel[3] phonemes of Achi.

[4] This article related to the Indigenous languages of the Americas is a stub.