Bernabe Posada was a male human in the 22nd century. He was captain of the Federation colony ship SS Esperanza, which transported the first settlers to Alpha Proxima II in 2189. Posada also served as the first Chief Representative of the Alpha Proxima government.

Posada Circle in Sierra City, the colony's capital, was named in his honor, and featured a bronze statue of Posada. (TOS - The Brave and the Bold, Book One novella: The First Artifact)