Robert I Estienne (; 15037 September 1559), known as "Robertus Stephanus" in Latin and sometimes referred to as "Robert Stephens", was a 16th-century printer and classical scholar in Paris. He was the proprietor of the Estienne print shop after the death of his father Henri Estienne, the founder of the Estienne printing firm. Estienne published and republished many classical texts as well as Greek and Latin translations of the Bible. Known as "Printer to the King" in Latin, Hebrew, and Greek, Estienne's most prominent work was the "Thesaurus linguae latinae" which is considered to be the foundation of modern Latin lexicography. Additionally, he was the first to print the New Testament divided into standard numbered verses.