Middleton is an English surname derived from Middle, referring to someone who lived in the middle of a village or community. It can also refer to one who came from the middle country, as opposed to the coasts or large cities. The name has been historically associated with the East Midlands region of England. It was first recorded in the early 13th century. Today, Middleton is more commonly found as a surname than a given name, though it can be used as such. In the United States, it was among the least common given names for boys and girls in recent years.
"The name Middleton had a noticeable increase in usage during the years 1918 and 1946-1947 with 8, 6, and 5 births respectively, while the other mentioned years maintained a steady birth count of 5."