What is sloan last name origin?

The Sloan surname is of Scottish and Irish origin. It is derived from the Gaelic word "sluagh," which means "warrior" or "warband." The name was originally used to describe someone who was a member of a warrior clan or who was known for their martial abilities. The Sloans were particularly prominent in the Scottish Highlands, where they were known for their skill with weapons and their fierce loyalty to their clans. Today, the Sloan surname is found throughout the English-speaking world, with large populations in the United States, Canada, and Australia.