| Gert-Jan Liefers | |
| Fullname: | Gerrit Jan Liefers |
| Height: | 1.86 m |
| Weight: | 71 kg |
| Birth Date: | 26 September 1978 |
| Birth Place: | Apeldoorn, Netherlands |
| Personalbest: | 800 metres – 1:45.47 (1998) 1500 metres – 3:32.89 (2001) Mile – 3:51.39 (2003) 3000 metres – 7:37.49 (2005) 5000 metres – 13:22.26 (2005) |
| Career: | 1988-present |
| Updated: | 22 March 2008 |
Gerrit Jan 'Gert-Jan' Liefers (born 26 September 1978 in Apeldoorn, Gelderland) is a former Dutch middle distance runner, who came 8th in the 1500 m final at the 2004 Olympics. He was also a finalist in the same event in the 2001 and 2003 World Championships.
Liefers finished 8th in the 5000 m final at the 2006 European Athletics Championships in Gothenburg. He is the Dutch record holder at 1500 m, the mile and 3000 m.
| 1995 | European Junior Championships | Nyíregyháza, Hungary | 3rd | 1500 m | 3:47.17 | |
| 1996 | World Junior Championships | Sydney, Australia | 4th | 1500 m | 3:40.47 | |
| 1997 | European Junior Championships | Ljubljana, Slovenia | bgcolor=gold | 1st | 1500 m | 3:46.91 |
| Universiade | Catania, Italy | 15th (sf) | 800 m | 1:49.03 | ||
| 6th | 1500 m | 3:46.09 | ||||
| European Cross Country Championships | Oeiras, Portugal | bgcolor=gold | 1st | Junior race (5.4 km) | 15:45 | |
| 1998 | European Indoor Championships | Valencia, Spain | 11th (sf) | 800 m | 1:50.82 | |
| European Championships | Budapest, Hungary | 15th (h) | 800 m | 1:47.57 | ||
| 13th (h) | 1500 m | 3:42.21 | ||||
| 1999 | European U23 Championships | Gothenburg, Sweden | bgcolor=silver | 2nd | 1500 m | 3:44.60 |
| World Championships | Seville, Spain | 24th (sf) | 1500 m | DNF | ||
| 2001 | World Championships | Edmonton, Canada | 9th | 1500 m | 3:36.99 | |
| 2003 | World Indoor Championships | Birmingham, United Kingdom | 6th | 3000 m | 7:44.34 (iNR) | |
| World Championships | Paris, France | 7th | 1500 m | 3:33.99 | ||
| 2004 | World Indoor Championships | Budapest, Hungary | 6th | 3000 m | 8:02.86 | |
| Olympic Games | Athens, Greece | 8th | 1500 m | 3:37.17 | ||
| 2006 | European Championships | Gothenburg, Sweden | 8th | 5000 m | 13:58.70 |
| Body | Party | Votes | Result | . | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Party seats | Individual | |||||||||||
| 2023 | House of Representatives | Party for Sports | style=text-align:right | 4 | style=text-align:right | 237 | style=text-align:right | 0 | [1] |