Aivo is an Estonian masculine given name. It is an Estonian equivalent of the Old Scandinavian name Ivar, from yr "yew" and -arr "warrior" . An alternative form is the related Estonian name Aivar.
People named Aivo include: Aivo Udras (born 1970), biathlete Aivo Orav (born 1965), diplomat Aivo Välja (born 1968), dirigent