Thomas van Erpe [known as Thomas Erpenius] (September 11, 1584 – November 13, 1624), Dutch Orientalist, was born at Gorinchem, in Holland.
After completing his early education at Leiden, he entered the university of that city, and in 1608 took the degree of master of arts. On the advice of Scaliger he studied Oriental languages whilst taking his course of theology. He afterwards travelled in England, France, Italy and Germany, forming connections with learned men, and availing himself of the information which they communicated. During his stay at Paris he contracted a friendship with Casaubon, which lasted during his life, and also took lessons in Arabic from an Egyptian, Joseph Barbatus, otherwise called Abu-dakni. However, giving the limited knowledge Barbatus had in Arabic he later took lessons under the Moroccan Diplomat of Andalusian origin Aḥmad ibn Qāsim Al-Ḥajarī who was in France on a mission.
At Venice he perfected himself in the Turkish, Persic and Ethiopic languages. After a long absence, Erpenius returned to his own country in 1612, and in February 1613 he was appointed professor of Arabic and other Oriental languages, Hebrew excepted, in the University of Leiden. Soon after his settlement at Leiden, animated by the example of Savary de Brèves, who had established an Arabic press at Paris at his own charge, he caused new Arabic characters to be cut at a great expense, and erected a press in his own house.