Tobias Conrad Lotter (1717 - 1777) was a German engraver and map publisher. He married the daughter of prominent map publisher Matthaus Seutter, the Elder. Upon Seutter's retirement Lotter took control of the firm and republished many of his maps with minor updated and changes. In time, Lotter became one of the most prominent mid 18th century map publishers working in the German school. After his death in 1777, the firm was taken over by his son, Mathias Albrecht Lotter who republished and updated many of his father's maps.