Esteban Manuel Antonio Castillo Cabrera (born April 1, 1957) is a Dominican former Major League Baseball third baseman.

Castillo played 3 seasons in Major League Baseball, with the Kansas City Royals in 1980 and the Seattle Mariners in 1982 and 1983.

Castillo had his best season in 1982 with the Mariners when he had 130 hits, had an average of .257, and all 3 of his career home runs.

As of 2018, Castillo is a coach in the Tampa Bay Rays farm system.

This biographical article relating to a Dominican baseball third baseman is a stub.