The 2021 Africa Cup of Nations, known as the TotalEnergies2021 Africa Cup of Nations for sponsorship reasons, was the 33rd edition of the Africa Cup of Nations, the biennial international men's football championship of Africa organised by the Confederation of African Football (CAF). The tournament was hosted by Cameroon, and took place from 9 January to 6 February 2022.
Group D of the 2017 Africa Cup of Nations was played from 17 to 25 January 2017 in Gabon. The group consisted of Ghana, Mali, Egypt, and Uganda.
Group A of the 2017 Africa Cup of Nations was played from 14 to 22 January 2017 in Gabon. The group consisted of hosts Gabon, Burkina Faso, Cameroon, and Guinea-Bissau.
Group B of the 2019 Africa Cup of Nations took place from 22 to 30 June 2019. The group consisted of Burundi, Guinea, Madagascar and Nigeria.
Group C of the 2019 Africa Cup of Nations took place from 23 June to 1 July 2019. The group consisted of Algeria, Kenya, Senegal and Tanzania.
Group D of the 2019 Africa Cup of Nations took place from 23 June to 1 July 2019. The group consisted of Ivory Coast, Morocco, Namibia and South Africa.
Group E of the 2019 Africa Cup of Nations took place from 24 June to 2 July 2019. The group consisted of Angola, Mali, Mauritania and Tunisia.
The knockout stage of the 2019 Africa Cup of Nations was the second and final stage of the competition, following the group stage. It began on 5 July with the round of 16 and ended on 19 July 2019 with the final, held at the Cairo International Stadium in Cairo. A total of 16 teams advanced to the knockout stage to compete in a single-elimination style tournament.
The Algerian team in its 57th year will participate in the Africa Cup of Nations for the 18th and fourth consecutive time.
Group A of the 2021 Africa Cup of Nations took place from 9 to 17 January 2022. The group consisted of Burkina Faso, hosts Cameroon, Cape Verde and Ethiopia.
Group B of the 2021 Africa Cup of Nations took place from 10 to 18 January 2022. The group consisted of Guinea, Malawi, Senegal and Zimbabwe.
Group C of the 2021 Africa Cup of Nations took place from 10 to 18 January 2022. The group consisted of debutants Comoros, Gabon, Ghana and Morocco.
Group D of the 2021 Africa Cup of Nations took place from 11 to 19 January 2022. The group consisted of Egypt, Guinea-Bissau, Nigeria and Sudan.
Group E of the 2021 Africa Cup of Nations took place from 11 to 20 January 2022. The group consisted of defending champions Algeria, Equatorial Guinea, the Ivory Coast and Sierra Leone.
Tunisia have participated in the Africa Cup of Nations 21 times, and hold the record for the highest number of consecutive participations, with sixteen between 1994 and 2023. Tunisia's first AFCON appearance was in 1962, where they took third place by defeating Uganda 3–0; only four countries participated in this edition. In the 1965 edition, Tunisia were allowed to host the competition and reached the final, losing to Ghana 2–3 after extra time.
The knockout stage of the 2021 Africa Cup of Nations was the second and final stage of the competition, following the group stage. It began on 23 January with the round of 16 and ended on 6 February 2022 with the final held at the Olembe Stadium in Yaoundé. A total of 16 teams advanced to the knockout stage to compete in a single-elimination style tournament.
Gambia joined the 2021 Africa Cup of Nations as the lowest-ranked team of the tournament as well as the lowest-ranked team ever to participate in AFCON. They debuted with a 1–0 win over Mauritania followed by a 1–1 draw to Mali. Gambia qualified for the round of 16 with a game to spare and on 20 January defeated Tunisia 1–0 in their final group match. They finished with the same points as Mali, which, however, won the group due to a better overall goal difference.
Group B of the 2022 African Nations Championship, consisting of DR Congo, Ivory Coast, Senegal and Uganda, began on 14 January and will end on 24 January 2023.
Group D of the 2022 African Nations Championship, consisting of Mali, Angola and Mauritania, began on 16 January and will end on 24 January 2023.
Comoros participated in the Africa Cup of Nations for the first time in the 2021 edition in Cameroon.
Tunisia 
Mali 
Gambia 
Mauritania 
