LeJuan Waynesley Simon (February 7, 1981 in Houston, Texas - October 1, 2008) was a Trinidad and Tobago triple jumper.
He finished fifth at the 2006 Commonwealth Games. He also competed at the 2004 Olympic Games without reaching the final.
His personal best jump was 16.87 metres, achieved in May 2002 in Odessa. He had 17.05 metres on the indoor track, achieved in March 2004 in Fayetteville. He also had 8.01 metres in the long jump, achieved in May 2004 in Baton Rouge.
Simon was a member of the Louisiana State University track and field team.
LeJuan Simon died on October 1, 2008 in Baton Rouge, Louisiana from complications of primary pulmonary hypertension.