Harold Everette Kolstad (born June 1, 1935) is a former pitcher in Major League Baseball who played from through for the Boston Red Sox. Listed at and , Kolstad batted and threw right-handed. He was signed by Boston as a free agent in 1957 out of the San Jose State University.
In a two-season MLB career, Kolstad posted a 0âÂÂ4 winâÂÂloss mark with 42 strikeouts and a 6.59 ERA in 34 appearances, including two starts, two saves and 72â  innings pitched. He surrendered 81 hits and 41 bases on balls.
In 1966, Kolstad joined the faculty at Leigh High School in San Jose, California as a teacher and coach. He remained there until his retirement in 1990.