Lorenz Fries (c. 1490 – 1531) was a German cartographer, cosmographer, astrologer and physician based in Strasbourg. Little is known of Fries' early life. He may have studied in Padua, Piacenza, Montpellier and Vienna, but strong evidence of this is unfortunately lacking. The first recorded mention of Fries on a 1513 Nuremberg broadside. Fries settled in Strasbourg in March of 1519, where he developed a relationship with the St. Die scholars, including, among others, Walter Lud, Martin Ringmann and Martin Waldseemüller. There he also befriended the printer and publisher Johann Grüninger. Although his primary profession was as a doctor, from roughly 1520 to 1525 he worked closely with Grüninger as the geographic editor of various maps and atlases based upon the work of Martin Waldseemüller. Although his role is unclear, his first map seems to have been a 1520 reissue of Waldseemüller's world map of 1507. Around this time he also began working on Grüninger's reissue of Waldseemüller's 1513 edition of Ptolemy, Geographie Opus Novissima. That edition included three new maps by Fries based upon the Waldseemüller world map of 1507 – two of these, his maps of East Asia and Southeast Asia, are quite significant as the first specific maps of these regions issued by a European publisher. In 1725 Fries decided to leave Strasbourg and surrendered his citizenship, relocating to Trier. In 1528 he moved to Basel. Afterwards he relocated to Metz where he most likely died. In addition to his cartographic work, Fries published tracts on medicine, religion, and astrology.