Irene Muto, 84, a Washington resident for much of her life who once worked for the Motion Picture Producers and Distributors of America here, died Sunday at the Wisconsin Avenue Nursing Home. She had diabetes.

Mrs. Muto was born in Washington and graduated from old Business High School. She married Fred Crisp, an officer in the Army Corps of Engineers, and accompanied him to various military posts. He died in 1924 while stationed in Hawaii.

His wife then returned to Washington and began working for the Motion Picture Producers and Distributors of America in about 1925. She was assistant to the head of the organization's Washington office until 1933 when she married Anthony Muto, another official of the association who later became a film company representative herre and then an Oscar-winning producer. b

Mrs. Muto received the Order of Isabella from the Spanish government for her work with the association.

The Mutos lived in Washington, Belle Haven, Va., and Pacific Palisades, Calif. They also had a cattle farm near Annapolis.

Mrs. Muto returned to Washington from Pacific Palisades following the death of her husband in 1964.

She had been active in the Red Cross in Washington during World War II. She also was a member of the Daughters of the American Revolution.

Survivors include a sister, Mary A. Riggles, of Washington