The 1999–2000 Segunda Divisão de Honra season was the tenth season of the competition and the 66th season of recognised second-tier football in Portugal.
[1] The league was contested by 18 teams with FC Paços de Ferreira winning the championship and gaining promotion to the Primeira Liga along with SC Beira-Mar and CD Aves.
At the other end of the table Moreirense FC, AD Esposende and SC Covilhã were relegated to the Segunda Divisão.
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