Brett William Eibner (born December 2, 1988) is an American former professional baseball pitcher and outfielder.

He played in Major League Baseball (MLB) for the Kansas City Royals, Oakland Athletics, Los Angeles Dodgers and Miami Marlins.

[1] The following season, Eibner was named SEC Pitcher of the Week for his complete-game one-hit shutout win against the #1 Georgia Bulldogs.

However, when the 2009 Arkansas Razorbacks baseball team reached the College World Series, Eibner hit "one of the most memorable home runs in program history" when he tied an elimination game vs Virginia in the top of the ninth with a two-run home run.

He made his MLB debut the following night at Kansas City's Kauffman Stadium, going 1-for-3 and scoring a run while striking out twice in the Royals' 7–5 win over the Chicago White Sox.

On August 30, 2019, Eibner was traded to the Sugar Land Skeeters of the Atlantic League of Professional Baseball.

Eibner was selected to the major league roster on August 18 and made his MLB debut as a pitcher that night in the ninth inning against the New York Mets.

Eibner was designated for assignment a second time on September 23, after Stephen Tarpley was activated from the injured list.

[25] He spent the season with the Triple–A Jacksonville Jumbo Shrimp, for whom he made 11 appearances and logged a 3.46 ERA with 14 strikeouts and 3 saves in 13.0 innings of work.