Michael James Holtz (born October 10, 1972) is an American former professional baseball relief pitcher and left-handed specialist. He played in Major League Baseball (MLB) for the California / Anaheim Angels, Oakland Athletics, San Diego Padres, and Boston Red Sox.

Professional career

On June 2, 1994, Holtz was drafted by the California Angels in the 17th round of the 1994 Major League Baseball draft. In 1997, he was named to the Topps All-Star Rookie Team along with fellow Angel teammate Jason Dickson. In an eight-season career, Holtz posted a 16–19 record with a 4.76 ERA and three saves in 353 relief appearances. Following the bulk of his MLB career, Holtz played for the Yokohama BayStars of the Japanese Central League in 2005 and had a 0–1 mark with 4.38 ERA and 22 strikeouts in 24 2/3 innings of work. He came back to the majors to pitch in three games for the Red Sox in 2006.