James Milton McGlothlin (October 6, 1943 – December 23, 1975), nicknamed "Red", was an American Major League Baseball pitcher.

In 1965, playing for the Seattle Angels of the Triple-A Pacific Coast League (PCL), he had a 14–8 record, with a 2.55 earned run average (ERA), and 180 strikeouts in 205 innings.

He was one win behind future major league pitcher and NBA hall of fame player Dave DeBusschere, and was one place ahead of him in strikeout ranking.

[7] McGlothlin made his major league debut at age 21 on September 20, 1965, allowing four earned runs in five innings pitched in a 4–2 home loss against the Baltimore Orioles.

He was named to the American League All-Star team in 1967, a season in which he tied for the AL lead in shutouts (with six), had a career-high nine complete games and posted a 12–8 record and a 2.96 earned run average.

[1] On November 25, 1969, he was included in one of the off-season's high profile interleague trades when the Angels sent him and fellow pitchers Pedro Borbón and Vern Geishert to the Cincinnati Reds for hard-hitting outfielder Alex Johnson and utility infielder Chico Ruiz.

[1][21] McGlothlin did not pitch in the 1970 National League playoffs against the Pittsburgh Pirates, and started Game 2 of the 1970 World Series against the Baltimore Orioles.

[22][23][24][25] In 1971, he lowered his earned run average from 3.59 to 3.22 and remained on the team's top ten players in wins above replacement,[26] but he dropped 12 of 20 decisions as Cincinnati won 23 fewer games than in 1970 and fell back in the standings.

[27] In strike-shortened 1972, McGlothlin's final full season with the Reds, he started 21 regular-season games and posted a winning record (9–8) for a pennant-winning club.