Det María Trinidad Sánchez Prowins (üüb Spaans: Provincia de María Trinidad Sánchez [maˈɾi.a tɾiniˈðað ˈsantʃes]) as ian faan dön 30 prowinsen uun det Dominikaans Republiik. Det hee 140.925 lidj (2010)[1]. At hoodsteed faan’t prowins as Nagua.