Seth Boois (died 2020) was a Namibian football manager and footballer.
Besides playing football as a youth player, Boois was also a boxer.
After working as manager of the Namibia national football team, Boois worked as technical director of the Namibia national football team.
Boois wrote two books about Namibian football.
Boois was born in Otjiwarongo, Namibia, and grew up supporting Namibian side Black Africa S.C.
Boois was married to Yvonne Boois and had children. He died in 2020 after suffering from COVID-19.