Retired Rear Adm. Dominic Lewis Mattie, 72, who also was a sales executive for a paint company and a paper company, died Tuesday at Bethesda Naval Medical Center. He had suffered from a heart ailment.

Adm. Mattie was born in Hornell, N.Y., and began his naval career in 1923 as an enlisted man.In 1925, he was appointed to the Naval Academy at Annapolis, and graduated in 1929.

During World War II, he commanded a flotilla of destroyer transports in the Solomon Islands and New Guinea campaigns and was awarded the Silver Star.

He was an instructor at the Naval Academy in 1945 and 1946, and was promoted to rear admiral at his retirement in 1947.

After leaving the service, Adm. Mattie became the East Coast sales manager of W. W. Lawrence Co., a division of the Sherwin-Williams paint company. In 1957, he took a sales position with S. Freedman and Sons, a wholesale paper firm. His second retirement was in 1972.

Adm. Mattie lived in Annapolis. He was a member of the Naval Academy Alumni Association, the Veterans of Foreign Wars and the American Legion.

Survivors include his daughter, Elizabeth W. Baldwin, of Potomac; a son, D. Lewis, of Severna Park, Md.; three sisters, Zena Mattie, a retired Navy commander, Severina Tuttle and Mary Chaffee, all of Frederick, Md.; a brother, Robert, of Baltimore, and eight grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Anne Arundel General Hospital Building Fund in Annapolis, or to the Naval Academy Alumni Association in Annapolis.