Orhangazi Mosque in Karadeniz Ereğli was built as a church between 408–450 AD, making it the oldest of the nine Hagia Sophias in Turkey, and has functioned as a historic mosque with a wooden ceiling and single minaret since the 1300s.
Orhangazi Mosque stands in the Orhanlar Neighborhood of Karadeniz Ereğli. The structure was originally built as a church under the name Hagia Sophia during the reign of Theodosius II between 408 and 450 AD. It is recorded as one of the nine Hagia Sophia churches within the borders of Turkey, and notably considered the very first to be constructed. Following the conquest of the region by Orhan Gazi in the 1300s, it was converted into a mosque and named after the sultan. Due to its location in the neighborhood, locals also refer to it as Orta Cami (Middle Mosque).
Today, it operates as a small-scale mosque featuring a wooden ceiling and a single minaret. Some visitors note that portions of the historic character are preserved inside, highlighting intriguing wall calligraphy and inscriptions. However, not all reviews are entirely glowing. Some visitors complain about the exterior wall plastering and adjacent apartment buildings that obstruct its historic appearance. Since the interior is not always unlocked outside prayer hours, some travelers have had to turn back without seeing the detailed interior.
Its location within walking distance of Ereğli Port and the central bus station makes it a convenient stop to include on a short city walk. Since street parking is unavailable directly outside, arriving on foot is the most practical choice.
History: From Church to Mosque
The origin of the building dates back to 408–450 AD during the reign of Roman Emperor Theodosius II. It was originally built as a church named Hagia Sophia (Holy Wisdom). Historical sources highlight that it is one of nine Hagia Sophia churches in modern Turkey, and reputedly the earliest one constructed. After the area was conquered by Orhan Gazi in the 1300s, the structure was converted into a mosque and took the name of the Ottoman sultan. It has actively served as a mosque for over 700 years.
How to Get There
The mosque is located within the Orhanlar Neighborhood in central Karadeniz Ereğli. Situated just 5 minutes on foot from Ereğli Port and 10 minutes from the bus station, it can easily be visited without taking up extra time during a city walk. Walking is highly recommended as finding a street parking space nearby can be challenging.
Architecture and Appearance
The mosque features a tiled flat roof, a single balcony minaret, and modest dimensions. Its interior relies heavily on wooden work, presenting a simple design. One visitor noted that the calligraphic inscriptions on the walls resemble those found in mosques in Edirne. However, some comment that plaster applied to the exterior facade and neighboring apartment buildings adjoining the roof impair its original historical charm.
Things to Know Before You Visit
The interior is not guaranteed to be open at all times; some visitors find the doors locked outside prayer times and miss seeing the interior. Additionally, head coverings are not always provided on site, so female visitors should carry a headscarf. There is no dedicated parking lot nearby, so you may need to park further away and walk.
What Else to See in Ereğli?
Because the mosque is close to Ereğli Port, it pairs very well with a stroll along the waterfront promenade. A short walk brings you to the local bazaar, bus terminal, and harbor area. Please note that there are multiple mosques named Orhangazi in Zonguldak province, so ensure you navigate to the correct one in central Ereğli: Orhanlar Neighborhood.
Recommended Visit Duration
Given the modest size of the mosque, a visit typically takes about 15 to 30 minutes. Combined with other nearby attractions in Ereğli (the port, coastline, and local market), it easily forms part of a half-day city tour.
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