Oudlajan (Persian: عودلاجان) is a historic neighborhood in Tehran, Iran. The neighborhood is surrounded by Pamenar Street, Cyrus Street (Mostafa Khomeini), Cheragh Bargh (Amir Kabir) and BozarJomehr Street (15 Khordad). Oudlajan, in addition to Arg, Dolat, Sangelaj, Bazar and Chalmeidan, constituted Old Tehran during the reign of Naser al-Din Shah Qajar (r. 1848-1896). Old Oudlajan consisted of 2619 houses and 1146 shops and was one of the biggest and wealthiest neighborhoods in Tehran.[1]