Rheinfeld is a hamlet in Coulee Rural Municipality No. 136, Saskatchewan, Canada. The hamlet is located on Highway 628 9 km north of Highway 363, about 15 km south of Swift Current.
In 2006, Rheinfeld had a population of 9 living in 4 dwellings, a 25% decrease from 2015. The hamlet had a land area of 0.00 km2 (0 sq mi) and a population density of 0/km2 (0/sq mi).