Jill Kintner is a professional American "Mid School" Bicycle Motocross (BMX) and professional mountain cross racer. Her competitive years were 1995 to 2002, 2007 to 2008 in BMX, 2004 to 2009 in mountain cross, and 2010 to present in downhill mountain biking. She switched to the mountain cross discipline full-time after her BMX retirement early in the 2004 season.).

Cycling competitions at the Beijing 2008 Summer Olympics were held from August 9 to August 23 at the Laoshan Velodrome, Laoshan Mountain Bike Course, Laoshan BMX Field and the Beijing Cycling Road Course.