Phalsbourg (German:Pfalzburg) is a commune in the Moselle department in Alsace-Champagne-Ardenne-Lorraine in north-eastern France, with a population of about 5,000.

It lies high on the west slopes of the Vosges, 25 miles (40 km) northwest of Strasbourg by rail. In 1911, it contained an Evangelical and a Roman Catholic church, a synagogue and a teachers' seminary. Its industries then included the manufacture of gloves, straw hats and liqueurs, and quarrying.