Lac-des-Seize-Îles (French pronunciation: [lak de sɛz il]; French for Sixteen Islands Lake) is a village and municipality in the Laurentides region of Quebec, Canada, part of the Les Pays-d'en-Haut Regional County Municipality.

There are in fact eighteen small islands on the lake, although the two smallest have no official name and have been judged too small for habitation:[5] One of the two unnamed islands is commonly referred to as 'Ile aux Bleuets', although Île Armitage was previously named as such.

Prior to European contact, this territory was occupied by the Weskarini Algonquin First Nation, and recent archaeological searches have uncovered 500-year old Huron and 700-year old Iriquoan pottery vases, suggesting the lake was possibly a meeting place.

The post office opened a year later in 1898, identified under the English name of Sixteen Island Lake.

[8] Pine Lake, located 1.5 km from Lac-des-Seize-Îles, received its first share of summer vacationers in 1907.