Su Song, China (1020–1101), horologist and engineer; as a Song dynasty diplomat, he used his knowledge of cartography and map-making to solve territorial border disputes with the rival Liao dynasty
Thomas Kitchin (1718–1784), London-based cartographer and engraver of maps of England, greater Europe, and parts of the British Empire.; at one time held the titles "Senior Hydrographer to His Majesty" and "Senior Engraver to His Royal Highness the Duke of York"[12]
Florence Kelley (United States, 1859–1932), political reformer, director of the Chicago portion of the Hull House Maps and Papers
Peter Kozler (Slovenia, 1824–1879), lawyer, geographer, politician, manufacturer
Lilian Lancaster (1852–1939), British creator of anthropomorphic maps
Rudolf Leuzinger (Switzerland, 1826–1896), known for mountain landscapes and geologic forms and the first to produce terrain maps in color lithography.
Kate McLean (United Kingdom) Best known for creating olfactory maps of cities
Jess Miller (United States, 1988– ), artist, photographer, and cartographer of rural Arkansas
Mark Monmonier (United States, 1943– ), wrote How to Lie with Maps and created the Monmonier Algorithm. Distinguished Professor Emeritus, Syracuse University
Mark Newman (1968– ), developed area contiguous cartograms using a diffusion-based method