Sisikon is a municipality in the Canton of Uri in Switzerland . It is situated on the shore of Lake Lucerne .

Sisikon has an area, as of 2006, of 16.3 km2 (6.3 sq mi). Of this area, 30.9% is used for agricultural purposes, while 44% is forested. Of the rest of the land, 1.2% is settled (buildings or roads) and the remainder (23.8%) is non-productive (rivers, glaciers or mountains). In the 1993/97 land survey, 36.5% of the total land area was heavily forested, while 4.1% is covered in small trees and shrubbery.