| 2020 Belgian Athletics Championships | |
| Host City: | Brussels, Belgium |
| Dates: | 14 August–16 August |
| Stadium: | King Baudouin Stadium |
| Previous: | 2019 |
| Next: | 2021 |
The 2020 Belgian Athletics Championships (Dutch; Flemish: Belgische kampioenschappen atletiek 2020, French: Championnats de Belgique d'athlétisme 2020) was the year's national outdoor track and field championships for Belgium. These were held from 14 August to 16 August at the King Baudouin Stadium in Brussels, with the exception of the hammer throw events which took place in Kessel-Lo. The national championships in 10,000 metres and women's 3000 metres steeplechase took place on Saturday 27 September in Braine-l'Alleud. Due to the COVID-19 pandemic, no supporters were present at any of the events.
| 100 metres | 10.43 | 10.51 | 10.62 | ||||
| 200 metres | 21.15 | 21.63 | 21.67 | ||||
| 400 metres | 46.80 | 47.26 | 47.40 | ||||
| 800 metres | 1:49.89 | 1:50.35 | 1:50.45 | ||||
| 1500 metres | 3:47.47 | 3:47.91 | 3:48.82 | ||||
| 5000 metres | 14:08.92 | 14:10.97 | 14:11.45 | ||||
| 10,000 metres | 29:29.92 | 29:34.06 | 29:34.60 | ||||
| 110 m hurdles | 13.82 | 14.45 | 14.67 | ||||
| 400 m hurdles | 50.69 | 51.37 | 51.49 | ||||
| 3000 m s'chase | 9:08.61 | 9:12.91 | 9:19.06 | ||||
| Long jump | 7.89 m | 7.51 m | 7.44 m | ||||
| Triple jump | 14.67 m | 14.20 m | 14.15 m | ||||
| High jump | 2.25 m | 2.15 m | 2.09 m | ||||
| Pole vault | 5.60 m | 5.00 m | 4.90 m 4.90 m | ||||
| Shot put | 16.65 m | 16.64 m | 15.36 m | ||||
| Discus throw | 60.16 m | 49.66 m | 49.06 m | ||||
| Javelin throw | 77.53 m | 73.41 m | 60.16 m | ||||
| Hammer throw | 63.19 m | 62.42 m | 59.19 m | ||||
| Decathlon | 7516 pts | 7013 pts | 6703 pts |
| 100 metres | 11.39 | 11.63 | 11.68 | ||||
| 200 metres | 23.42 | 23.43 | 23.90 | ||||
| 400 metres | 53.13 | 54.30 | 54.51 | ||||
| 800 metres | 2:03.90 | 2:05.74 | 2:06.16 | ||||
| 1500 metres | 4:18.69 | 4:22.79 | 4:24.63 | ||||
| 5000 metres | 16:31.36 | 17:14.53 | 17:14.71 | ||||
| 10,000 metres | 34:29.98 | 34:31.56 | 34:32.58 | ||||
| 100 m hurdles | 13.07 | 13.37 | 13.59 | ||||
| 400 m hurdles | 56.14 | 57.80 | 60.08 | ||||
| 3000 m s'chase | 10:05.02 | 11:09.55 | 11:25.39 | ||||
| Long jump | 5.98 m | 5.93 m | 5.78 m | ||||
| Triple jump | 12.79 m | 12.75 m | 12.48 m | ||||
| High jump | 1.84 m | 1.82 m | 1.74 m | ||||
| Pole vault | 4.20 m | 4.10 m | 4.00 m | ||||
| Shot put | 14.28 m | 13.69 m | 13.50 m | ||||
| Discus throw | 51.48 m | 50.94 m | 48.52 m | ||||
| Javelin throw | 44.24 m | 43.84 m | 42.25 m | ||||
| Hammer throw | 67.62 m | 56.89 m | 46.44 m | ||||
| Heptathlon | 6167 pts | 5230 pts | 4929 pts |