Saint-Dié-des-Vosges (French pronunciation: [sɛ̃ dje de voʒ] ; German: Sankt Didel, before 1999: Saint-Dié) is a commune in the Vosges department, Grand Est, northeastern France.

It is a sub-prefecture of the department.

Saint-Dié is located in the Vosges Mountains 80 km (50 mi) southeast of Nancy and 80 km (50 mi) southwest of Strasbourg. This route in the valley of the river Meurthe was always the more frequented, and first to get a rail line in 1864, so now it accommodates the primary road.

Saint-Dié-des-Vosges, principal town of an arrondissement of the same name, belongs to the Vosges département of France. This commune with a little town in her center, is approximately 50 km (31 mi) northeast of Épinal, and connected by two roads, south through the passes of Haut-Jacques and Bruyères or north by the pass of Haut-du-Bois and the ancient land of Rambervillers.