The Cuitlatec (alternatively Cuitlateco, Cuitlateca) were an Indigenous people of Mexico. They lived in the Río Balsas and Costa Grande regions of Guerrero state in Mexico's Pacific coast region. Their native Cuitlatec language is generally considered to be a language isolate. Cuitlatec is considered extinct as a linguistic group and ethnic identity, the last speaker of the language having died in the 1960s.
The name Cuitlatec is a derogatory Nahuatl exonym, the root cuitlatl carrying the vulgar meaning of "excrement". However, this also been interepreted as "gold people", given that gold was named in Nahuatl teocuitlatl, or "divine excrement". The Cuitlatec name for themselves was aʔnelgái.