Matthew Stephen Sinatro (born March 22, 1960, in Hartford, Connecticut) is an American former professional baseball player, coach and scout. A catcher during his playing days, he appeared in 140 games over ten seasons in Major League Baseball (MLB) for four clubs: the Atlanta Braves (1981–84), Oakland Athletics (1987–88), Detroit Tigers (1989) and Seattle Mariners (1990–92), and had a 15-year career as an MLB coach.