James Lee Arnold (born March 24, 1974) is a former Major League Baseball right-handed pitcher.
Drafted by the Atlanta Braves in the first round of the 1992 MLB amateur draft, Arnold spent seven seasons in the Braves farm system, pitching for the Gulf Coast Braves (1992), Macon Braves (1993), Durham Bulls (1994–1995), Greenville Braves (1995–1998) and Richmond Braves (1998).
Signed as a minor league free agent by the Los Angeles Dodgers after the 1998 season, Arnold made his Major League Baseball debut with the Dodgers on April 20, 1999 against the Braves, working 2 scoreless innings. He pitched 36 games for the Dodgers in 1999, including 3 starts.
He failed to make the Dodgers Opening Day roster in 2000 and spent the first half of the season primarily with the Albuquerque Dukes. On July 26, 2000, the Dodgers traded him (along with Jorge Piedra to the Chicago Cubs for Ismael Valdes. Arnold pitched in 12 games for the Cubs that season, including 4 starts.
Released after the season, he pitched in the minors for two more years, first with the Fresno Grizzlies in the San Francisco Giants system and then with the Florida Marlins Triple-A team, the Calgary Cannons. On May 25, 2002, Arnold threw the first no-hitter in Cannons' history against the Iowa Cubs.