Masjid al-Khor or Masjid al-Khawr is the principal Ibadi mosque in Old Muscat located below Fort al-Mirani. Its proximity to Muscat Bay is evidenced in its name, khor or khawr, which translates to inlet. The date of its original construction is unknown, but it has long been the favored mosque of the Al-Said ruling family of the Sultanate of Oman through today, and historically was a site of Ibadi religious education. The present-day mosque is a reconstruction of the original mosque on the same site, however it does not adhere to the same Ibadi architectural style as its predecessor. It was last renovated by Sultan Qaboos in 1980. It was also known as the Mosque of Martyrs in reference to those Omanis who lost their lives defending the port city from the Portuguese in the seventeenth and eighteenth centuries.

It is easily identified by the blue-tinted glass that makes up its exterior, with accents of white marble and blue and brown tiles. Its ceiling is covered in calligraphic inscription of the ninety-nine names of Allah in gold and features a crystal chandelier. 

Sources:

“Know about Al Khor Mosque where His Majesty will perform Eid prayer.” The Arabian Stories. Published April 20, 2023. Accessed August 1, 2025. https://www.thearabianstories.com/2023/04/20/know-about-al-khor-mosque-where-his-majesty-will-perform-eid-prayer/. Archived at: https://perma.cc/NM46-LBGN. 

Peterson, J. E. Historical Muscat : An Illustrated Guide and Gazetteer. Leiden ; Brill, 2007, 96.