Ippolito Baccusi (also Baccusii, Hippolyti) (c. 1550 – 2 September 1609) was an Italian composer of the late Renaissance, active in northern Italy, including Venice, Mantua, and Verona.
A member of the Venetian School of composers, he had a strong reputation as a master of counterpoint, and wrote both sacred and secular vocal music.
Sometime in the late 1560s he was appointed assistant director of the choir at San Marco in Venice, but he did not hold the position for long, going to Ravenna to study.
[1] On 14 November 1574 he was appointed maestro di cappella of the monastery of Santo Stefano in Venice, a position he resigned before 23 July 1575.
By 1583 he held the maestro di cappella position at Mantua Cathedral, where among other things he taught counterpoint to Lodovico Zacconi, who mentioned him glowingly in his Prattica de musica seconda parte of 1622, particularly for his contrapuntal skill.