Lempy Lucas (born 7 November 1961 in Eendombe, Omusati Region) is a Namibian politician. A member of the National Assembly since 2000, Lucas is a member of the South West Africa People's Organization (SWAPO). Lucas has held a number of Deputy Minister positions in Namibia's government, she currently is Deputy Minister of Agriculture, Water and Forestry. She had previously been a SWAPO Party Youth League activist.
Lucas joined SWAPO in 1979 and fled shortly thereafter to Angola, where she studied. In 1982, she earned a diploma in Youth Administration from East Germany. She then returned to Angola in the mid-1980s, where she worked as an administrator at the SWAPO Health and Education Centre at Kwanza-Sul. In 1986 she was reassigned to Luanda, where she worked in the SWAPO headquarters until independence in 1989. From 1990 to 2002, Lucas served as an important figure in the SWAPO Party Youth League. In 1997, she joined the SWAPO Central Committee. In 2004, she was appointed to the position of Deputy Foreign Minister. She was then a resident of Ohangwena Region.
Following the 2009 parliamentary elections, Lucas was redeployed as Deputy Minister of Defence. In the Cabinet reshuffle following the fifth SWAPO congress in 2012, Lucas swapped positions with Petrus Iilonga and is now the Deputy Minister of Agriculture, Water and Forestry.