8 best spa hotels in Siena

Spa hotels in Siena suit travellers who want more than a comfortable base: think proper spa facilities, calm environments, and services designed for recovery after long days in the medieval centre. Siena’s historic core is tightly defined and concentrated around landmarks such as Piazza del Campo—the city’s iconic shell-shaped square and home to the civic heart at the Palazzo Pubblico—and Fonte Gaia, the celebrated fountain at the edge of the Campo. Staying nearby is ideal for couples and culture lovers who prefer to step out directly into sightseeing, then unwind on-site when the day gets busy.

For a quieter, restorative feel, consider hotels that sit just beyond the city bustle—especially around the outskirts where you’ll find more space and privacy. Certosa di Maggiano is a notable example of a monastery-style retreat on the edge of Siena, offering a calmer, nature-adjacent stay while still connecting you back to the centre.

In practice, the best “spa hotel” match in Siena is one with a genuine wellness offering (think thermal-style experiences, massage or beauty services, and a dedicated relaxation area), plus rooms that feel restorative—often in converted historic buildings or countryside settings. Your ideal fit is either: a walk-everywhere location for short trips and evening ambience, or a slower, greener base for stress relief and longer spa sessions.

Bookable examples include Certosa Di Maggiano Hotel (4★) for an outside-of-the-core escape, and Residenza d'Epoca Relais Campo Regio (3★) for a central base with easy access to the historic quarter.