Catherine of Spain
Catherine of Spain designates the following persons:
- Catherine of Aragón (1485–1536), daughter of Ferdinand II. King of Aragón, wife of Arthur Tudor Prince of Wales and Henry VIII. King of England
- Catherine of Castile (1507–1578), regent of Portugal, daughter of Philip I, King of Castile, wife of John III. King of Portugal
- Katharina Michaela of Spain (1567–1597), daughter of Philip II, King of Spain, wife of Charles Emanuel I, Duke of Savoy