James Louis Beattie (born July 4, 1954) is an American former professional baseball pitcher who played for the New York Yankees and Seattle Mariners from 1978 to 1986.

Each vocalized frustration with the organization when they acquired pitchers Goose Gossage, Andy Messersmith and Rawly Eastwick after the 1977 season, believing that it hindered their chances of making the major league roster.

He pitched 6+1⁄3 innings and gave up just one run in his major league debut to beat Hall of Famer Jim Palmer and the Baltimore Orioles.

They moved on to Detroit for a three-game set next, and Beattie won the second game of that series to give the Yankees sole possession of first place.

On June 20, a line drive off the bat of the Toronto Blue Jays' John Mayberry shelved Beattie for two months.

[17] On September 12, 1979, Boston Red Sox legend Carl Yastrzemski singled off Beattie for his 3,000th career hit.

[18] After the season, he, Rick Anderson, Juan Beníquez and Jerry Narron were traded to the Seattle Mariners for Ruppert Jones and Jim Lewis.

[13] Beattie started the 1981 season in the bullpen, but after getting rocked in three outings, he was reassigned to the Triple-A Pacific Coast League Spokane Indians.

[21] Beattie went 3–2 with one save with a 2.02 ERA while holding batters to a .212 batting average in the second half, as opposed to the eight earned runs he gave up in 4+1⁄3 innings of work prior to his demotion to Spokane.

Despite an 8–12 record, his 3.34 ERA was seventh-best in the American League, 140 strikeouts was eighth-best, and the .233 batting average he held batters to was sixth-best.

He received his M.B.A. from the University of Washington in 1989 (he also has a bachelor's degree from Dartmouth), then returned to the Mariners as their player development director in 1990.

[31] He quit at the end of the 2001 season; after a year away from the game, he joined the Baltimore Orioles as executive vice president of baseball operations.