Omar Effendi (Arabic: عمر أفندي) is a chain of department stores in Egypt that was founded in 1856 by Leon Orosdi and Hermann Back as Orosdi-Back.

They also had stores internationally in Bulgaria (Philippopoli), Greece (Salonica), Romania (Bucharest), Tunisia (Tunis) and Turkey (Izmir - closed in 1934).

[9] From 1905 to 1906 a flagship was built on the corner of Abdel Aziz Street and Roushdy Basha in Downtown Cairo, the six floor rococo style building was designed by French architect Raoul Brandon [fr].

[5] However in 2011 the Egyptian Administrative Court rolled back the sale to Anwal in 2006 and the chain once again became state owned.

[16] In 2021 the company partnered with the Majid Al Futtaim Group to open 14 Carrefour stores within Omar Effendi locations.