Donis Dean Patterson (April 27, 1930 – February 3, 2006) was an American bishop of the Episcopal Diocese of Dallas.
An alumnus of Ohio State University and the Episcopal Theological School, he was diocesan bishop from 1983 to 1992.
He was an Eagle Scout and recipient of the State Leadership Award from the 4-H Clubs of Ohio.
He retired in 1992 and became assistant bishop of the Diocese of the Central Gulf Coast where he served until 1995.
He then became bishop-in-residence at St Luke's Cathedral in Orlando, Florida, in 1996 and remained so until his death on February 3, 2006, due to acute leukemia.