| Nationality: | Swedish |
| Sport: | Track and field, cross country |
| Event: | 800 m, 1500 m, 3000 m, 5000 m, 10000 m, cross country |
| Birth Date: | 17 February 1946 |
| Birth Place: | Killeberg, Skåne, Sweden |
| Height: | 189 cm |
| Weight: | 69 kg |
Kjell-Erik Bertil Ståhl (born 17 February 1946) is a retired long-distance runner from Sweden. He represented his native country twice at the Summer Olympics (1980 and 1984) in the men's marathon, finishing in 19th place in Moscow. Ståhl twice won the Stockholm Marathon. He holds the Swedish marathon record with a time of 2:10:38, set in 1983.
He holds the Single Age World Record in the marathon for men who are 49 years of age, at 2:19:47, set on 10 June 1995 in Stockholm (source: Association of Road Racing Statisticians, updated 1 Nov 2019).
In 2007, the German issue of Runners World featured an article about him.
In one 12-month period, between August 1981 and August 1982, he ran 14 marathons with an average finishing time of 2:16:11. Between 1979 and 1998, he completed 101 marathons. In 70 of those, he finished in under two hours and twenty minutes, winning 17. He won the 1986 Stockholm marathon at the age of 40 in 2:12:33. In 1983, three weeks before the World Championship in Helsinki, he ran 190 km in a week, while employed full time.
His personal bests included:
| Representing | ||||||
|---|---|---|---|---|---|---|
| 1980 | Moscow, Soviet Union | 19th | Marathon | |||
| 1981 | Beijing Marathon | Beijing, PR China | 1st | Marathon | 2:15:20 | |
| Frankfurt, West Germany | 1st | Marathon | 2:13:20 | |||
| New York, United States | 12th | Marathon | 2:13:31[2] | |||
| Fukuoka Marathon | Fukuoka, Japan | 12th | Marathon | 2:14:13 | ||
| 1982 | Stockholm, Sweden | 1st | Marathon | 2:19:20 | ||
| Boston Marathon | Boston, United States | 5th | Marathon | 2:12:47 | ||
| Athens, Greece | 10th | Marathon | ||||
| Rome, Italy | 8th | Marathon | 2:15:24[3] | |||
| 1983 | Helsinki, Finland | 4th | Marathon | |||
| 1984 | Los Angeles, United States | - | Marathon | |||
| 1986 | Stockholm, Sweden | 1st | Marathon | 2:12:33 | ||
| Stuttgart, West Germany | 9th | Marathon | ||||
| 1994 | Helsinki, Finland | - | Marathon | |||