Charlie Cunningham (born August 23, 1948) is a mountain biker from Fairfax, California. Along with frame builder and his helper Mark Slate, Cunningham co-founded Wilderness Trail Bikes (WTB). Cunningham and Potts were forced out of WTB in 2002 for undisclosed reasons, at the urging of WTB's CEO, Patrick Seidler. Cunningham and his wife, Jacquie Phelan, are charter inductees to Crested Butte's Mountain Bike Hall of Fame.