Ian Philip Gibaut (/dʒɪˈboʊ/ jih-BOH;[1] born November 19, 1993) is an American professional baseball pitcher in the Cincinnati Reds organization.

He has previously played in Major League Baseball (MLB) for the Tampa Bay Rays, Texas Rangers, Minnesota Twins, and Cleveland Guardians.

The son of the cricketer Russel Gibaut,[2] he attended Lamar High School in Houston, Texas and played college baseball at Tulane University.

[7] Gibaut spent 2018 with the Durham Bulls, going 4-3 with a 2.09 ERA and a 1.00 WHIP, striking out 75 batters in 56 relief innings pitched.

[13][14] He made his major league debut on July 12 versus the Baltimore Orioles, allowing two runs and striking out two batters over two innings pitched.

On February 19, 2021, Gibaut was outrighted off of the 40-man roster to make space for Matt Shoemaker and was invited to Spring Training as a non-roster invitee.

[20] After appearing in 27 games for the St. Paul Saints, posting a 1-3 record with a 7.20 ERA and 46 strikeouts, Gibaut's contract was selected by the Twins on August 27.

[28] In 2023, Gibaut made 74 appearances out of the bullpen for Cincinnati, registering an 8–4 record and 3.33 ERA with 69 strikeouts and 3 saves across 75+2⁄3 innings.