Amos Lay (1765 - 1851) was an American surveyor, cartographer, and engraver active in New York in the late 18th and early 19th centuries. Lay was born in New Hampshire. He began his career as a survey in Vermont and New Hampshire, where he worked as a land agent promoting properties in Ontario. He surveyed along the St. Lawrence in Franklin and St. Lawrence counties. His first map, published in 1801, is a large format map of New York compiled with Arthur J. Stansbury. He subsequently issued a larger map of New York in 1812, and in 1827, a large wall map of the United States.