Lausi is a municipality (suco) in Aileu subdistrict, Aileu District, East Timor. The administrative area covers an area of 5.24 square kilometres and at the time of the 2010 census it had a population of 665 people.
Coordinates: 8°48′58″S 125°35′59″E / 8.8161°S 125.5997°E / -8.8161; 125.5997