Ziyech brings proven pedigree to Brazil, having scored nine goals in 16 appearances for Wydad Casablanca last season. He also starred during Morocco's historic 2022 World Cup semi-final run, earning 64 caps and scoring 25 goals for his country.
His arrival continues a distinct tradition of Botafogo recruiting high-profile world stars from outside the American continent.
The Moroccan follows in the footsteps of Dutch legend Clarence Seedorf, Japanese icon Keisuke Honda, and Ivory Coast forward Salomon Kalou.