Seedorf, 36, left AC Milan with the expiry of his contract at the end of the season, following 300 games for the Rossoneri.
The former Real Madrid, Inter Milan and Ajax player is a four-time Champions League winner, league winner in all three European countries and a member of Real Madrid’s Team of the Century.
With 87 international appearances for the Netherlands, Seedorf has also achieved greatness on the international stage, but will now pit his wits in Brazil’s Serie A.
Linked with a move to LA Galaxy, West Ham United and Beijing Guoan in recent times, Botafogo have won the race for the Dutch international, who will represent the Alvinegro from July 1.
