Bernard Fellay, SSPX (born 12 April 1958) is a Swiss bishop and former superior general of the Traditionalist Catholic Society of Saint Pius X.
In 1988, Pope John Paul II announced that Fellay and three others were automatically excommunicated for being consecrated as bishops by Archbishop Marcel Lefebvre, an act that the Holy See described as "unlawful" and "schismatic".
Archbishop Lefebvre, and Bishop Antônio de Castro Mayer who co-consecrated these four bishops, were also excommunicated.
At that time, he was the youngest bishop of the Roman Catholic Church at 29 years old.
In January 2009, at Fellay's request, the Congregation for Bishops, on instructions from Pope Benedict XVI, rescinded the excommunication.