Arthur Stewart McInnes, 57, a retired executive of Riggs National Bank, died Thursday at Holy Cross Hospital after a long illness.

He had retired Sept 1. after serving earlier as vice president and manager of the main office for seven years.

Born in Syosset, Long Island, Mr. McInnes attended Stonier Graduate School of Banking at Rutgers University and the American Institute of Banking.

He worked for three years for Bankers Trust Co. in New York before joining Riggs here in 1941. He served with the Navy in World War II, returning to Riggs after the war.

Mr. McInnes became assistant manager of the Dupont Circle branch in 1953, and two years later also was named assistant cashier there.

He transferred to the Park Road branch in 1959 as assistant vice president, and became vice president and manager in 1965.

He was a member of the Metropolitan Washington Board of Trade, the Columbia Heights Businessmen's Association, the Lions Club and the Argyle Country Club.

He is survived by his wife, Ingrid Peterson McInnes, of the home in Silver Spring; two daughters, Linda M. Norby, of Centereach, L.I., and Joan M. Garey, of Gaithersburg; his mother, Florence Van Wicklen McInnes, and a sister, Elizabeth M. Kappstatter, both of Syosset; a brother, Henry Joseph, of Hicksville, L.I., and three grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Lung Association of Mid-Maryland, the Montgomery County Heart Association or the Wheaton Rescue Squad.