Dom Angelo Grillo OSB (1557 – October 1629) was an Italian early baroque poet belonging to the noble Genoese family of the Spinola.
He rose to be abbot of several, including Saint Paul Outside the Walls in Rome, where he was one of the founding members of the Accademia degli Umoristi.
He reworked and expanded the collection, and it was published eleven times by its arrival at a final version, a corpus of more than two thousand poems, in 1629.
His Lettere, published in several editions after his death, contain correspondence with most of the major writers of the day and give a detailed and lively picture of contemporary literary life.
His madrigal texts were set by Monteverdi, Filippo Bonaffino, Orazio Vecchi, Luca Marenzio, Giuliano Paratico, Salamone Rossi, Pomponio Nenna and others.