Scala Regia (Latin pronunciation: [ˈskaːla ˈreːɡia]; English: Royal Staircase) is a term referring to a number of majestic entrance staircases, including:
- The Scala Regia of the Vatican, a flight of steps designed by Gian Lorenzo Bernini (1663–1666) to connect the Vatican Palace to St. Peter's Basilica.
- Main staircase of Villa Farnese at Caprarola
- Entrance to the Ducal Palace of Lucca
- Entrance to House of Lords, Westminster, United Kingdom
Other staircase entrances include the Scala d'Oro in Venice.