Abdihakim "Abdi" Abdirahman (born January 1, 1977) is an American long-distance runner. He is a five-time Olympian competing for the United States in the 10,000 meters and the marathon. He has been competing at the highest level in track and field for over 20 years and continues to shine in the sport. 

Abdi graduated from Tucson High in 1995 and attended Pima Community College before transferring to the University of Arizona for his junior and senior years. 

At Arizona, Abdi was named the 1998 Pac-10 Conference Cross Country Male Athlete of the Year. He finished second at the 1998 NCAA Cross Country Championships.

Abdi competed in five straight IAAF World Cross Country Championships between 2000 and 2004, with a best finishing place of 11th in 2002.

He competed in the 10,000 meters at the 2000 and 2004 Summer Olympics, finishing tenth and fifteenth, respectively. He also finished seventh in the 10,000 meters at the2007 World Championships in Osaka, his best finish after placing 19th in 2003 and 13th in 2005.

In 2008, Abdirahman won the 10,000 meters at the US Olympic Trials.  

His personal best time in the 10,000 meters is 27:16.99 minutes, achieved in June 2008 at Hayward Field during the Prefontaine Classic.

On January 14, 2012, Abdirahman qualified for the 2012 Olympics by finishing third in the U.S. Olympic Marathon Trial in Houston.  Unfortunately, Abdi was forced to drop out of the marathon with a knee injury.

Abdi finished 3rd in the 2016 TCS New York City Marathon in a time of 2:11:23.

At the 2020 US Olympic Trials in Atlanta, Abdi finished 3rd in the marathon with a time of 2:10:03, securing his place on a fifth Olympic team.  At 43, Abdi became the oldest American runner ever to make the Olympic team.