St. John's Co-Cathedral, Valletta
Cathedral in Valletta

St. John's Co-Cathedral in Valletta is a historic church and one of Malta's key Baroque interiors. Built between the 1570s as the conventual church of the Knights of St. John, it was designed by Maltese architect Girolamo Cassar and dedicated to St. John the Baptist, patron of the Order.
The exterior is restrained and almost military in character, but the nave is covered with gilded carving, painted scenes by Mattia Preti, and a floor of inlaid marble tombstones for knights of the Order. The Oratory contains Caravaggio’s The Beheading of Saint John the Baptist and Saint Jerome Writing. It suits visitors interested in art, architecture, and the Knights of Malta; those seeking a quiet church visit may find the crowds distracting.
History and Significance
St. John's Co-Cathedral was constructed shortly after the founding of Valletta, intended as both a house of worship and a statement of prestige for the Knights of St. John. The building's fortress-like exterior mirrored the disciplined, militaristic nature of the Order, while the interior reflected its wealth and religious fervor. Initially simple in design, it underwent a lavish Baroque transformation in the 17th century under Grand Master Raphael Cotoner, who commissioned artist Mattia Preti to paint its dramatic vaulted ceilings.
Each Langue (national division) of the Knights had its own chapel within the cathedral, leading to friendly competition over which could be the most elaborately adorned. These chapels remain among the most ornate in Europe, filled with gilded altarpieces, marble statues, and symbolic imagery. The floor itself is a masterpiece - more than 400 inlaid marble tombs commemorate knights and commanders, their coats of arms and Latin inscriptions immortalizing centuries of service and sacrifice.
Things to See and Do
The undisputed highlight is Caravaggio’s “The Beheading of Saint John the Baptist,” displayed in the Oratory. This is the artist’s only signed painting and one of the most powerful depictions of martyrdom in art history. The nearby “Saint Jerome Writing” showcases Caravaggio’s signature use of light and shadow, offering insight into his time in Malta.
Visitors can wander through the side chapels, each dedicated to different national groups of the Knights, marveling at their unique decorations. The vaulted ceilings painted by Preti depict scenes from the life of St. John and seem to shimmer in the light filtering through the high windows. Beneath your feet, the marble floor adds another layer of beauty and reflection, each tombstone a work of art in itself. This spot is one of the best places to see in Valletta and a highlight of any walking tour of Valletta, where faith and art converge on an unparalleled scale.
Practical Tips
- Best time to visit: Early morning or late afternoon to avoid crowds
- Entrance fee in Euros: Around €15 for adults (includes audio guide)
- Opening hours: Monday to Friday 9:30 am-4:30 pm, Saturday 9:30 am-12:30 pm
- Official website: stjohnscocathedral.com
- How long to spend: 1-2 hours
- Accessibility: Wheelchair accessible via main entrance
- Facilities: Audio guides in multiple languages, gift shop, and restrooms
- Photography tip: Photography inside is limited - focus on details in side chapels and the marble floor
- Guided tours: Available and highly recommended for historical context
- Nearby food options: Cafés and restaurants along Merchant Street and Republic Square
How to Get to St. John’s Co-Cathedral
Located in the very heart of Valletta on St. John's Street, the cathedral is easily accessible on foot from City Gate - about a 10-minute walk through the bustling main streets. Visitors arriving by ferry from Sliema or the Three Cities can take the Barrakka Lift up to the Upper Barrakka Gardens and stroll toward the cathedral. Valletta's compact layout makes it easy to include the cathedral as part of a day of sightseeing.
Is St. John’s Co-Cathedral Worth Visiting?
Absolutely. St. John's Co-Cathedral is one of the Must-see places in Valletta and among the most beautiful churches in Europe. Its combination of artistic brilliance, historical importance, and spiritual atmosphere makes it a destination that stays with you long after you leave. Even for non-religious visitors, the cathedral's art and architecture offer a window into Malta's soul.
What Other Travellers Say...
Reviews Summary
A high-baroque gem in Valletta, famous for its opulent gold-leaf interior, intricate marble floors, and Caravaggio's masterpiece, The Beheading of Saint John the Baptist.
The St. John's Co-Cathedral appears in our Complete Guide to Visiting Valletta!
Moira & Andy
Hey! We're Moira & Andy. From hiking the Camino to trips around Europe in Bert our campervan — we've been traveling together since retirement in 2020!
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Planning Your Visit
Mon-Fri 9:30-16:30h, Sat 9:30-12:30h, Sun: closed
Adults: €10,Seniors and students: €7.50, Children under 12: Free
Nearby Attractions
- Great Siege Square (0) km
Monument and Square - National Museum of Archaeology (0.1) km
Museum - Church of St. Paul’s Shipwreck (0.1) km
Church - Republic Square (Piazza Regina) (0.1) km
Square - Auberge D’Italie, Valletta (0.1) km
Historic Building and Tourist Office - MUŻA — The National Community Art Museum (0.2) km
Museum - Palace Square (St. George’s Square) (0.2) km
Square - Grandmaster’s Palace and Armoury (0.2) km
Historic Building and Palace - Auberge de Castille, Valletta (0.2) km
Historic Building - Pjazza Teatru Rjal (0.2) km
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