Antonio María Martínez (died 1823) was a colonel in the infantry regiment of Zamora and the last governor of Spanish Texas.
He assumed the political and military governorship of Spanish Texas on March 27, 1817.
Agustín de Iturbide was in possession of Mexico, and Martínez, at the request of the Baron de Bastrop, approved Moses Austin's petition for permission to bring 300 settlers into Texas.
On July 18, 1821, Martínez was forced to issue orders requiring the oath of allegiance to Iturbide.
After learning that José Félix Trespalacios had been appointed to succeed him, he surrendered his office peacefully on August 17, 1822.