You do not typically need to present your physical passport to enter the Palace of Versailles or its gardens for a standard tour. However, a grounded reality in 2026 is that you must have a valid form of ID to collect pre-booked tickets or to verify your age if you are utilizing a "Free Entry" or discounted rate (such as the "Under 26" EU resident discount). For most international travelers, a passport is the "Gold Standard" for this identification. Furthermore, while the palace itself doesn't require it for entry, French law requires foreigners to carry a valid ID at all times, making it a supportive practice to have your passport or a high-fidelity photocopy with you. If you are participating in a "Security Screening," which is a mandatory and supportive part of the entrance process, you may be asked for ID if something in your booking or behavior triggers a check. To avoid a "hard-fail" at the gate, always ensure your name on the ticket matches the ID you carry, as Versailles remains one of the most high-security "Heritage Sites" in the world.