Luther S. Phillips (fl. c. 1930 – 1950) was a Maine graphic designer and photographer who made pictorial maps and postcards. He is arguably the Maine's most significant pictorial cartographer. Much of his work focused on the Maine coast in the vicinity of Bar Harbor. Phillips was based in Northeast Harbor, Mount Desert Island, Maine. His company, 'Map of Maine' produced local pictorial maps for the tourist market. He would tour around Maine to promote and sell them, along with his scenic postcards. Later his brother Augustus D. Phillips, and nephew, Donald Phillips (1935 – 2009) joined the firm. Luther died in Togus, Maine.