Giovanni Battista Costa () was an Italian painter, active in Milan about 1670. The churches of San Agostino, San Giovanni and San Eustorgio in Milan each have a painting by him.''Benezit'' 2011.

References

Sources

* Martin, Andrew John (2021)
"Costa, Giovanni Battista (1670)"
In Beyer, Andreas; Savoy, Bénédicte; Tegethoff, Wolf (eds.). ''Allgemeines Künstlerlexikon - Internationale Künstlerdatenbank - Online''. K. G. Saur. Retrieved 7 October 2022. * "Costa, Giovanni Battista"
'' Benezit Dictionary of Artists''. 2011. Oxford Art Online. Retrieved 7 October 2022. 17th-century Italian painters {{Italy-painter-17thC-stub