Karl Gustav Bonuvier (21 September 1776 – 1 August 1858), was a Swedish stage actor and theatre director, active in Sweden and Finland.
Bonuvier was the son of Peter Bonnevier, a servant of the queen of Sweden, Louisa Ulrika of Prussia, and Anna Elisabet Klisnick.
He was active at the Stenborg Theatre in Stockholm in 1796–99, where he played the lover in Den dubbla intrigen ('Double intrigue') by Dumaniant.
Finally, he formed his own travelling theater company, where he toured by the privilege of the Russian Czar in 1813–27.
In 1813, he was allowed to found a permanent theatre house in Turku, the Bonuviers Teater; the building was completed in 1817.