John Rooney (born 1954) is an American sportscaster, currently best known for his role as a radio broadcaster for Major League Baseball's St. Louis Cardinals.
A Richmond, Missouri native, Rooney began his broadcast career in the 1970s, doing a number of assignments for various radio stations in Missouri and Oklahoma. In 1980, he began calling play-by-play for the Oklahoma City 89ers, a minor league baseball team, as well as Indianapolis football and basketball. He broadcast for the Louisville Redbirds beginning in 1983.
Rooney broadcast for the Minnesota Twins in the mid-1980s. In 1988, he joined the Chicago White Sox' television crew; the following year he switched to the team's radio booth, where he teamed with Wayne Hagin (1989–1991) and Ed Farmer (1992–2005).