Gregorio Urbano Gilbert Suero (May 25, 1898 – November 29, 1970) was a Dominican Republic linotypist and guerrilla fighter.
Through his maternal side, he is related to Juan Suero (nicknamed the "Black Cid"), a prominent fighter who fought in the Independence and Restoration wars during the mid-1800s.
In 1916, Gilbert settled in San Pedro de Macorís where he worked as a linotypist, and as a salesclerk in a grocery store.
His sentence was commuted to life imprisonment, but he was released on October 22, 1922; Gilbert went to the exile in Cuba, Curaçao, and Nicaragua.
Gilbert was also part of the 1965 April Revolution and fight against the second United States occupation of the Dominican Republic (1965–66).