Giovanni Battista Baiardo (died 1657) was an Italian painter of the Baroque period.
He was mainly active in Genoa as a painter of religious and historical canvases.
He painted the St. Helen prays to cross for the Genoese church of Santa Croce e San Camillo de Lellis.
His name is also written as Giovanni Battista Bajardo.
This article about an Italian painter born in the 17th century is a stub.