Mahmut Celâl Bayar (16 May 1883 – 22 August 1986) was a Turkish politician, statesman, and the thirdPresident of Turkey. Mr. Bayar, as the Turkish President, was decorated with the Legion of Merit by the U.S. President. He is considered to be the longest-lived former head of state and was until 2008 the longest-lived state leader (when he was surpassed in 2008 by Chau Sen Cocsal Chhum).