The surname Coulter has Irish origins, with a possible connection to Gaelic etymology. It is derived from the Old English word "culter" or the Gaelic "cúl tir," meaning "back land" or "remote land." Historically, the name was most commonly found in Scotland, particularly in Lanarkshire and Ayrshire, and in Ireland, associated with Ulster. Over the centuries, migration patterns have spread the surname to various parts of the world, including the United States, Canada, Australia, and New Zealand. The name has also been associated with various professions, including farming and agriculture, due to its connection to the tool known as a "coulter," a blade attached to a plow.
