Karl Tomas Eneroth (born 4 December 1966) is a Swedish politician of the Social Democrats who has been Minister for Infrastructure since 2017. He was previously Leader of the Social Democrats in the Swedish Riksdag from 2014 to 2017. He has been Member of the Riksdag since 1994. representing Kronoberg County.
From 2010 to 2014, he served as deputy leader of the Committee on Social Insurance (Swedish: socialförsäkringsutskottet). He has previously been leader of the same committee, as well as leader of the Committee on Industry and Trade. In 2011, he was mentioned as a possible candidate to replace Håkan Juholt as leader of the party.