Jeffrey Wayne King (born December 26, 1964) is an American former professional baseball player who played for the Pittsburgh Pirates and Kansas City Royals.

King was a key part of the Pirates Division Championship teams of 1990, 1991, and 1992, batting 6th right after Barry Bonds, Andy Van Slyke and Bobby Bonilla.

On August 8, 1995, he hit two home runs in the second inning of the Pirates' 9–5 victory over the San Francisco Giants at Candlestick Park.

[1] On April 30, 1996, he repeated this feat, this time in the fourth inning of the Pirates' 10–7 victory over the Cincinnati Reds at Cinergy Field.

King was the Royals regular first baseman at the beginning of the 1999 season, but, bothered by back problems, he abruptly announced his retirement on May 23, 1999, two days after going 1–4 against the Texas Rangers.