J. Douglas Deshotel was born in Basile, Louisiana. He studied at Holy Trinity Seminary and was ordained a priest on May 13, 1978, for the Roman Catholic Diocese of Dallas.
Deshotel was appointed Auxiliary Bishop of the Roman Catholic Diocese of Dallas as well as titular bishop of Cova on March 11, 2010, by Benedict XVI. Deshotel was consecrated an auxiliary bishop of the Diocese of Dallas on April 27, 2010.
On Wednesday, February 17, 2016, Bishop Deshotel was appointed bishop of the Roman Catholic Diocese of Lafayette in Louisiana, succeeding Bishop Charles Michael Jarrell, whose resignation was accepted the same day. He was installed as the seventh bishop of the Diocese of Lafayette on April 15, 2016, in the Cathedral of St. John the Evangelist at Lafayette, LA by the Most Reverend Gregory Aymond, Archbishop of New Orleans.