Keith Bontrager
（重定向自Bontrager）
- For the Iowa-based musical group, see the Bontrager Family Singers.
Keith Bontrager (/bɒnˈtreɪɡər/; born December 18, 1954) is a motorcycle racer who became a pioneer in the development of the modern mountain bike. Between 1980 and 1995, he was president of his own Bontrager Company, which continues to develop components for Trek Bicycle Corporation though Trek bought out Bontrager.