Ralph Agas, English surveyor and cartographer (born 1540)

Ralph Agas was an English land surveyor and cartographer. He was born at Stoke-by-Nayland, Suffolk, in about 1540, and lived there throughout his life, although he travelled regularly to London. He began to practise as a surveyor in about 1566, and has been described as "one of the leaders of the emerging body of skilled land surveyors".