Huilacollo (possibly from Aymara wila blood, blood-red, qullu mountain, red mountain) is a mountain in the Andes of southern Peru which reaches a height of approximately . It is located in the Tacna Region, Candarave Province, on the border of the districts of Camilaca and Candarave. Huilacollo lies southwest of the Tutupaca volcano and east of Sallajaque.