Warner is a village in Alberta, Canada. It is surrounded by the County of Warner No. 5, approximately 65 km south of Lethbridge. Warner is a farming community. Warner is situated at the intersection of Highway 4 and Highway 36, about 38 km north of the Montana border and Interstate 15. Warner's nearest neighbours are the towns of Stirling and Milk River. It is home to the Devil's Coulee Dinosaur Heritage Museum.