Isaac Kiprono Songok (born 25 April 1984 in Kaptel, Nandi District) is a Kenyan long-distance runner.
He went St. Patrick's High School in Iten, famous for producing runners.
In 2001 he set a new 2000 m World Junior Record (4:56.86) in Berlin and became World Youth Champion at 1500 metres.
He is best known for winning the silver medal in the short race at the 2006 World Cross Country Championships.
He is managed by James Templeton and coached by Colm O'Connell. Songok is from Kaptel village, as is Bernard Lagat, another famous athlete.
| Representing | ||||||
|---|---|---|---|---|---|---|
| 2001 | World Youth Championships | Debrecen, Hungary | 1st | 1500 m | 3:36.78 | |
| 2002 | World Junior Championships | Kingston, Jamaica | 7th | 1500 m | 3:44.93 | |
| 2003 | Paris, France | 9th | 1500 m | 3:34.39 | ||
| 2004 | Brussels, Belgium | 7th | Short race (4 km) | 11:45 | ||
| 3rd | Team competition | 52 pts | ||||
| Athens, Greece | 12th | 1500 m | 3:41.72 | |||
| Monte Carlo, Monaco | 11th | 1500 m | 3:48.32 | |||
| 2005 | Saint-Étienne- Saint-Galmier, France | 3rd | Short race (4.196 km) | 11:39 | ||
| 2nd | Team competition | 21 pts | ||||
| Helsinki, Finland | 10th | 5000 m | 13:37.10 | |||
| Monte Carlo, Monaco | 3rd | 5000 m | 13:40.24 | |||
| 2006 | Fukuoka, Japan | 2nd | Short race (4 km) | 10:55 | ||
| 1st | Team competition | 21 pts | ||||
| Stuttgart, Germany | 3rd | 3000 m | 7:39.50 | |||
| 2007 | Osaka, Japan | 18th (h) | 5000 m | 13:47.42 | ||
| 2008 | Addis Ababa, Ethiopia | 2nd | 5000 m | 13:49.91 | ||