In the most recent FIFA rankings, released on Thursday, the Super Eagles fell for the first time under new manager Jose Peseiro.
The three-time AFCON champions fell five places to 40th in the world and 6th in Africa.
Following the shocking defeat to Guinea Bissau Wild Dogs in the 2023 Africa Cup of Nations qualifiers, Nigeria fell in the rankings after failing to secure an AFCON 2023 slot with two matches remaining.
Coach Peseiro’s team lost the first leg by a single goal in Abuja, their fourth consecutive defeat, but won the rematch in Bissau by a single goal thanks to a Simon Moses penalty.
Nigeria is now the sixth-best team in Africa, trailing Morocco, Senegal, Tunisia, Algeria, and Egypt as the top five best-ranked African teams.
Despite their victory over Brazil, Morocco, the 2022 World Cup semi-finalists, remains ranked 11th in the world.
Brazil, on the other hand, has fallen to second place, having been displaced by World Cup champions Argentina, while France has risen to second after two victories over the Netherlands and Ireland in the final round of EUROS qualifiers.
The top ten are Belgium, England, the Netherlands, Croatia, Italy, Portugal, and Spain.