Santo Anibal Alcalá (born December 23, 1952) is a Dominican former Major League Baseball starting pitcher.

Alcala was signed by the Cincinnati Reds organization as an amateur free agent and initially assigned to the minor leagues.

Alcala made his major league debut on April 10, 1976, with the Cincinnati Reds.

In his final major league appearance, Alcala pitched a scoreless inning in relief, bringing his 1977 earned run average to 4.83.

The Expos later sent Shane Rawley and Angel Torres to the Cincinnati Reds to complete the trade.