Guillaume Boni (–) was a French Renaissance composer. Boni was choirmaster at Saint-Étienne Cathedral from 1565 until his death in 1598.[1] Like Anthoine de Bertrand, he was born in Auvergne and worked in Toulouse.
His works were known in England: a work of Boni's is the only identifiable foreign work found in the Willmott and Braikenridge 1591 manuscripts of Latin church music.