Santiago Millas
Municipality
Hermitage of Santo Cristo
Coat of arms
Santiago Millas
Coordinates: 42°23′N 6°06′W / 42.383°N 6.100°W / 42.383; -6.100
Country	Spain
Autonomous community	Castile and León
Province	León
Municipality	Santiago Millas
Area
• Total	39 km2 (15 sq mi)
Population  (2025-01-01)[1]
• Total	350
• Density	9.0/km2 (23/sq mi)
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
Climate	Csb

Santiago Millas is a municipality located in La Maragatería, province of León, Castile and León, Spain. According to the 2004^{[needs update]} census (INE), the municipality had a population of 335.

• 
  Morales del Arcediano
• 
  Oteruelo
• 
  Piedralba
• 
  Valdespino de Somoza

• Barrio de Abajo
• Morales de Arcediano
• Oteruelo
• Piedralba
• Santiago Millas
• Valdespino de Somoza