Maurice Edwin Landrieu, known as Moon Landrieu (born July 23, 1930), is a Democratic politician from Louisiana who served as Mayor of New Orleans from 1970 to 1978. He also is a former judge. He represented New Orleans' Twelfth Ward in the Louisiana House of Representatives from 1960 to 1966, served on the New Orleans City Council as a member at-large from 1966 to 1970 and was the United States Secretary of Housing and Urban Development under U.S. President Jimmy Carter from 1979 to 1981.