Allen Kenneth Johnson (born March 1, 1971) is a retired hurdling athlete and won Olympic Gold in the 110 metre high hurdles at the 1996 games in Atlanta, Georgia. He is also a four time world champion.

Born in Washington, D.C., an all-round athlete, Johnson attended University of North Carolina at Chapel Hill and excelled at high jump, long jump and decathlon as well as hurdles.

Career
Johnson was troubled by injury in 2000 but still made the final at the 2000 Summer Olympics in Sydney, Australia just missing out on adding to his medal collection by finishing fourth.

2003 in the Stade de France, saw Johnson win his fourth IAAF World Championships in Athletics 110 m hurdles title when he beat Terrence Trammell into second to overtake the three world championshipgold medals that Greg Foster had won at the event.

At the 2004 Summer Olympics he tripped over a hurdle in the 2nd preliminary round and was unable to finish the race and reach the final. He was however ranked world's number 1 throughout 2004's season.

Johnson is trained by Curtis Frye, at the University of South Carolina where he served as a volunteer assistant coach. He is currently the sprint and hurdles coach at the United States Air Force Academy in Colorado Springs, CO.

His personal best is 12.92 seconds, only 0.01 seconds short of the then-world record held by Colin Jackson. Johnson has legally finished 11 races in less than 13 seconds, more than anyone else so far. Johnson officially retired in July 2010, at the age of 39.

Achievements 
(110 Meter Hurdles unless stated)1994

1994 IAAF World Cup - London, England Silver
 

1995 World Championships in Athletics - Gothenburg, Sweden Gold
 
1995 IAAF World Indoor Championships - Barcelona, Spain 60 Meter Hurdles, Gold
 

1996 Summer Olympics - Atlanta, Georgia Gold, Olympic record

1997 World Championships in Athletics - Athens, Greece
 Gold

1998 Goodwill Games - Uniondale, New York
 Silver

2000 Summer Olympics - Sydney, Australia

2001 World Championships in Athletics - Edmonton, Alberta, Canada
 Gold

Goodwill Games - Brisbane, Australia
 Gold

2002 IAAF World Cup - Madrid, Spain
 Silver

2003 World Championships in Athletics - Paris, France
 Gold

2003 IAAF World Indoor Championships - Birmingham, England
 60 Meter Hurdles, Gold

2004 IAAF World Indoor Championships - Budapest, Hungary
 60 Meter Hurdles, Gold

World Championships in Athletics - Helsinki, Finland
 Bronze