Alberto Rosario (born January 10, 1987) is a Dominican professional baseball catcher for the St. Louis Cardinals of Major League Baseball (MLB). Rosario began his professional career with the Los Angeles Angels of Anaheim organization in 2005. The St. Louis Cardinals promoted Rosario to the major leagues on July 6, 2016. He played 11 seasons in Minor League Baseball before making his major league debut July 9, 2016, against the Milwaukee Brewers. He singled and batted in a run in his first MLB at-bat in an 8−1 win.