Benjamin Milliken (b. 1728 Boston, Province of Massachusetts Bay d. 1791 Bocabec, New Brunswick) was an American Loyalist, major landowner, mill and ship owner in Maine in the Province of Massachusetts Bay, British North America. He was the founder of Ellsworth, Maine (first called the Union River Settlement) in 1763, laid out and received the land grant for the Township of Bridgton, Maine (originally called Pondicherry) in 1765 and was one of the first settlers in Bocabec and St. Andrew’s, New Brunswick in 1784.