Dimitra Liani (Greek: Δήμητρα Λιάνη; born 30 April 1955) is the third wife of former Greek Prime Minister Andreas Papandreou.
Born Dimitra Liani in 1955 in Elefsina, she comes from a well-connected family. Her father was a distinguished army officer, Colonel Constantine Lianis, while her cousin George Lianis was the member of parliament for her home town. She worked as an air hostess with Olympic Airways. She married Papandreou in 1989 and became first lady—and head of his private office—when he returned to power in 1993.