Peter Fehlner, also known as Peter Damian Mary Fehlner, was a Catholic priest.
He was a member of the Roman Catholic Order of Friars Minor Conventual.
After his Franciscan and theological formation and several decades of ministry in this Order, he joined the Franciscan Friars of the Immaculate in 1996 , but in 2016 he professed again the Rule and the Constitutions of ancient Franciscan Conventual Order.
Fehlner was a theologian and mariologist.
From 2008-2014, he served as rector of the Shrine of Our Lady of Guadalupe in La Crosse, Wisconsin.
He was also a professor of theology in the Franciscans' Institute of Ecclesiastical Studies, the Immaculatum (STIM) in Frigento, Italy.
A scholar in the Franciscan tradition of theology, he focused primarily on the philosophical and theological traditions of St.