Thrypti is a mountain range in Lasithi in eastern Crete, Greece. It trends to the northeast from Ierapetra in the southwest in the direction of Sitia. However, it only goes half-way in that direction. The rest of the distance is completed by the distinct Ornon mountains, separated from the Thrypti by the Bebonas river valley, and the lower Western Siteia Foothills covering the space between the Ornon range and Sitia itself. The highest peak of Thrypti is Afentis, which is 1,476 m amsl. The three ranges constitute the West Sitia Mountains.