Joseph Pere Bell Wilmer (February 11, 1812 – December 2, 1878) was the second Episcopal bishop of Louisiana.

Joseph Wilmer was born in Swedesboro, New Jersey, United States, in 1812,[1][2] the son of the Rev.

[6] Wilmer began his ordained ministry by serving at St. Anne's Parish in Albemarle, Virginia, from 1834 to 1838.

[1][2] His cousin Richard Hooker Wilmer was elected Bishop of Alabama by the Protestant Episcopal Church in the Confederate States of America during the American Civil War, and, although Richard Wilmer was unable to attend the first General Convention after the war, his consecration was ratified by the reunited church.

[2][5] During his episcopate, Bishop Wilmer grew the diocese, despite financial, flooding, and political troubles.