Duane Eugene Kuiper (born June 19, 1950), nicknamed "Kuip", is an American sportscaster and former professional baseball player.

As a player, he was a second baseman for the Cleveland Indians and San Francisco Giants of Major League Baseball (MLB).

Save for one year, Kuiper has been a television and radio broadcaster for the Giants since 1986, and is one half of the popular "Kruk and Kuip" duo alongside his friend and former teammate Mike Krukow.

Case High School in the twelfth round of the 1968 Major League Baseball Draft, but chose instead to attend Indian Hills Community College.

He was drafted by the Seattle Pilots, Chicago White Sox and Cincinnati Reds while attending Indian Hills, but did not sign with any of these clubs.

Kuiper made his major league debut on September 9 as a late inning defensive replacement for Jack Brohamer, and grounded into a double play in his only at-bat.

Following the season, the Indians dealt Brohamer to the White Sox, clearing a spot for Kuiper to play every day.

He hit his only career home run against Chicago White Sox pitcher Steve Stone on August 29, 1977.

Kuiper holds the major league record for most career at-bats with exactly one home run in the live-ball era.

On April 25, 2014, the Giants held "Duane Kuiper Home Run Bobblehead Night" for their game against the Indians.

[8] Shortly after Kuiper suffered a knee injury that caused him to miss most of the 1980 season, the Indians acquired Alan Bannister from the White Sox.

With uncertainty over whether the Giants would move to Florida for the 1993 season, Kuiper left for a one-year stint with the expansion Colorado Rockies.

On November 1, 2010, Kuiper made the historic call for the final out of Game 5 of the 2010 World Series that resulted in the Giants' first title since 1954.

[16][17] According to an Aug. 21, 2019 story in Sports Broadcast Journal, Kuiper uses a deep baritone voice when a player swings and misses, when a dramatic play is made, and when he calls home runs.

[13] For many years, Kuiper would visit his family's farm in Sturtevant, Wisconsin whenever the Giants played the Brewers in Milwaukee.