Osman Birsen (born 1945) is a Turkish high-ranking civil servant for finance and was the CEO of the Istanbul Stock Exchange between 1997 and 2007.
On his return, Osman Birsen was appointed Deputy General Director of the Banking and Foreign Exchange Department at the Ministry of Finance.
Between 1989 and 1993, he served as Deputy Permanent Representative of the Turkish Delegation to the OECD in Paris, France.
In October 1993, following his return to Turkey, he was appointed Assistant Secretary to the Prime Ministry responsible for economic coordination.
[3] He was also the Chairman of the ISE Settlement and Custody Bank (Turkish: Takasbank) and President of the Federation of Euro-Asian Stock Exchanges (FEAS).