Laugardalslaug (Icelandic pronunciation: [ˈlœyːɣarˌtalsˌlœyːx], "pool of Laugardalur") is a public thermal baths and swimming pool complex located in the Laugardalur district of Iceland's capital Reykjavík.

Receiving about 800,000 visitors in 2010,[1] it is the most visited thermal baths in Iceland after the Blue Lagoon.

The baths are owned by the City of Reykjavík, and are operated by its Department of Sport and Leisure (ÍTR; Íþrótta- og tómstundasvið Reykjavíkur [is].

[7][8] The hot springs of Laugardalur were mentioned by Þorkell Arngrímsson Vídalín [is] in 1672.

[9][10] The springs were visited by Uno von Troil, Archbishop of Uppsala, on his journey to Iceland in 1772.