Joseph Ngolepus is a Kenyan former marathon runner who won the 2001 Berlin Marathon, and finished third at the 2003 London Marathon. He also won the 2003 CPC Loop Den Haag half marathon, the 2004 Rock 'n' Roll San Diego Marathon, the 2006 Madrid Marathon, and the 2008 Paderborn Easter Run half marathon.

The CPC Loop Den Haag is an annual half marathon competition held in The Hague, Netherlands, every mid-March.