Sart-lez-Spa (French pronunciation: [saʁ le spa]; Walloon: Li Sårt-dilé-Spå) is a village of Wallonia and a district of the municipality of Jalhay, located in the province of Liège, Belgium.
Nearby is the river Hoëgne, a tributary of the river Vesdre.
It was a municipality before the fusion of the Belgian municipalities in 1977.