Mehmet Altan Öymen (born 20 June 1932) is a Turkish journalist, author and former politician.
He began his journalist career already in 1950 aged 18 and worked as a reporter, columnist and editor-in-chief long time for the major newspapers like Ulus, Akşam, Cumhuriyet and Milliyet.
He was elected in 1977 as the deputy of Ankara from the Republican People's Party (CHP) to the Turkish Grand National Assembly, and became minister for tourism and public relations in the cabinet of Bülent Ecevit's second government, which lasted only one month in the summer 1977.
He acted 15 months long at this post, before Deniz Baykal was reelected at the next extraordinary party congress in 2000.
Öymen resumed his journalist career, which he had interrupted during his party leadership, and wrote on political issues in his column in the newspaper Radikal.