Anaku () or aksu ( or ) was a skirt-type garment of indigenous women in the Inca Empire. It was a long drape dress straight in shape, falling to ankle length.
Anaku was a typical dress of Andean women. It was a long rectangular piece of woven cloth wool fibers, a simple draping garment. The traditional wearing style of Otavalo women was different, as they were wearing it with a blouse. An ankle-length anaku (as an underskirt) was wrapped over with another anku.
The full-body Anaku evolved to half-body Anaku in certain areas. Initially, the anaku was larger, that changed with generations; the length of the garment became shorter and changed to half of the ancestral version. It is still a costume that Otavalo people wore. Anku was tied around the waist with a sash called <nowiki></nowiki>chumbi<nowiki></nowiki> or <nowiki></nowiki>chumpi<nowiki></nowiki> or <nowiki></nowiki>Chumpia<nowiki></nowiki>. There was a similar type but ankle-length garment <nowiki></nowiki>aksu<nowiki></nowiki> that was worn in Southern parts. Anaku as a wrap skirt still worn around Northern Ecuador.