Door of the Great Serial), is a mosque, located on Weygand Street, in the central district of Beirut, Lebanon.

The Old Serail and the bath complex were replaced by Souk Sursock in the 1880s, while the Bab al-Saraya gate was removed in 1915 to make way for the new Foch-Allenby commercial district.

In 1934, the mosque’s ablution rooms were built on the west side, in alignment with the street leading to Etoile Square.

[2][3] Post-war restoration of the mid-1990s lead to the renovation of the original western façade of the mosque.

The square shape of the mosque, its five-cupola roof, the ablaq decoration of the entrance and the muqarnas detailing of the windows are characteristic of Lebanese style.