The Rev. Richard M. Coolahan, S. J., who had been a hospital chaplain, teacher and Jesuit official, died Saturday of cancer at Stella Maris Hospice. He was 80.

A Mass of Christian burial for Father Coolahan was offered yesterday at St. Alphonsus Rodriguez Roman Catholic Church, 10800 Old Court Road, Woodstock.

Father Coolahan had lived in retirement at the Jesuit Provincial -- residence in Roland Park since 1990.

He was a chaplain at Fort Meade from 1969 to 1973.

Father Coolahan also served churches in Philadelphia, Chambersburg, Pa., Holland, Pa., Moorestown, N.J., and Jonesboro, Ga., and taught at three high schools: Gonzaga College in Washington, St. Joseph's Preparatory School in Philadelphia and St. Peter's High School in Jersey City.

A native of Baltimore and a graduate of Loyola High School, he entered the novitiate of the Society of Jesus at Poughkeepsie, N.Y.

He is survived by three sisters, Mildred Doyle of Fairfield, Conn., Loretta Coogan of Cazenovia, N.Y., and Cecelia Coolahan of Towson.