Catherine V. Toomey, 93, a Washington resident for more than 60 years who was active in Catholic Church groups, died of congestive heart failure Sunday at the home of a son in Bowling Green, Va.

Mrs. Toomey was born in New York City.She moved to Washington in 1906 to attend Trinity College, from which she graduated in 1910. She married Vincent L. Toomey, a Washington attorney who was on the faculty of the Catholic University law school for many years. Mr. Toomey died in 1956.

Mrs. Toomey was a member of the parish of St. Thomas the Apostle Catholic Church here for more than 50 years. She was active in behalf of St. Anne's Infant Home and the Christ Child Society. She also was active in the Trinity College Alumnae Association.

About 1970, she moved to Ireland for a year and then returned to the United States and made her home in Bowling Green.

Her eldest son, Vincent L. Toomey Jr., died in 1970.

Survivors include five children, Catherine T. Brown, of Rehobeth Beach, Del., James E. Toomey, of Oakland, Calif., John J. Toomey, of Kensington, T. Murray Toomey, of Chevy Chase, and Robert J. Toomey, of Fredericksburg and Bowling Green, Va.; a sister, Rita McCann, of Clearwater, Fla.; 33 grandchildren, and eight great-grandchildren.