Jeffrey Siebert is a Regional General Manager for Six Flags in Texas, overseeing several parks including Six Flags Over Texas and Schlitterbahn. They served as Park President at Six Flags Fiesta Texas from 2016 to 2025 and held roles at multiple amusement parks, including a Corporate Director of Marketing & Sales at Schlitterbahn Waterparks & Resort and a Manager of Communications and Guest Experience at Paramount's Kings Island. Jeffrey's career in the industry began as a Marketing Manager at Americana Amusement Park and progressed through various marketing and communications positions, including Director of Advertising for the Cincinnati Mighty Ducks. They earned a degree from the University of Cincinnati between 1990 and 1995.
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