Dirceu Vegini (14 April 1952 – 29 September 2018) was an Brazilian Roman Catholic bishop.
Vegini was born in Brazil and was ordained to the priesthood in 1984.
He served as titular bishop of Putia in Byzacena and was auxiliary bishop of the Roman Catholic Archdiocese of Curitiba, Brazil from 2006 to 2010.
He then was bishop of the Roman Catholic Diocese of Foz do Iguaçu.