Willow Koerber (born December 12, 1977) is an American former professional cross-country mountain biker.

[1] She most notably finished third at the 2009 and 2010 UCI Cross-country World Championships.

She also finished second overall at the 2010 UCI Cross-country World Cup Koerber is married to Myles Rockwell, a retired professional downhill mountain bike racer and world champion.

In 2019, the couple created The Rockwell Ridewell Foundation, a 501(c)(3) organization for youth development.

This biographical article relating to American cycling is a stub.