Antonio Thomas, conquistador

Antonio Thomas (c. 1520 – 1590s) was a Portuguese marine, conquistador in service of the Spanish crown. He had attended the two foundations of Buenos Aires.

Thomas was born in Viseu, had arrived at Rio de la Plata in the expedition of Pedro de Mendoza participating in the founding of the city. He participates in a relief expedition of Juan Ortiz de Zarate, in the Puerto de San Salvador. In 1580 Thomas, had accompanied Juan de Garay in the second Foundation of Buenos Aires.

Antonio Thomas also assisted in the founding of Santa Fe, Argentina, was appointed Alcalde. and Regidor of the City.