Richard Curtis Mattingly, 55, retired civilian research analyst with the Navy Department who also was a retired commander in the Naval reserves, died Saturday at Suburban Hospital. He had Shy-Drager syndrome, a neuropathic disorder.

Mr. Mattingly served on active duty in the Navy from 1943 to 1947, and again from 1950 to 1951. He was a Navy pilot and retired from the reserves in 1971.

He worked as a civilian research analyst with the Navy Department for about 20 years before retiring in August 1980. He began his career there with the Bureau of Personnel and spent his last 10 years with the Naval Sea Systems Engineering Station at the Washington Navy Yard.

Mr. Mattingly was a deacon of the Warner Memorial Presbyterian Church in Kensington, and had been chairman of the North Chevy Chase Village Citizen Association from 1975 to 1980.

He was a native of Washington and a graduate of McKinley High School and the old Wilson Teachers College. He earned a master's degree in geography at the University of Pennsylvania in 1951.

Survivors include his wife, Sue Lynn of Chevy Chase; three sons, Army Capt. Richard Curtis Jr. of Fort Richardson, Alaska, John R., of Takoma Park, and Bryan A., of Chevy Chase; a stepson, Jack Browne, also of Chevy Chase; a daughter, Dorothy Grace Mattingly, and two stepdaughters, Kelly Browne and Stacy, all of Chevy Chase; his mother, Grace L. Mattingly of Wheaton; a brother, Dr. Thomas E. Jr., of Mount Holly, N.J., and two sisters, Grace Clark of New Carrollton, and Phyllis Evans of Bethesda.

The family suggest that expressions of sympathy be in the form of contributions to the Warner Memorial Presbyterian Church in Kensington.