Liliw is a fourth class municipality in the province of Laguna, Philippines. It is one of the highland towns forming the southern extremity of the province. According to the 2010 census, it has a population of 33,851.
Liliw has a total land area of 3,910 hectares (9,700 acres). It is bounded on the north-west by Sta. Cruz; north-east by Magdalena; on the east by Majayjay; on the west by Nagcarlan; and on the south by Dolores, Quezon.
Liliw is perhaps best known for its cold water spring resorts, native homemade sweets and a sizeable shoe industry that rivals that of Marikina City.
Liliw is politically subdivided into 33 barangays.