Gloria Ann Setti, 37, a social worker at the Walter Reed Army Medical Center, died of cancer Wednesday at Georgetown University Hospital.

She had joined the center about six years ago and was chief of child social work for the child and adolescent service there, providing therapy to children, adolescents and families. She also helped train Army social workers, psychologists and psychiatrists in those skills.

Mrs. Setti, who retained her maiden name after her marriage to Eric Kafka, was born in Watertown, Mass. She was a graduate of Albertus Magnus College in New Haven, Conn., and earned a Master's degree in social work from Boston College.

She came to Washington in 1966 and was a staff social worker in the crippled children unit at D.C. General Hospital and chief social worker at the Area B Community Mental Health Center's youth services office here before becoming a social worker at Walter Reed.

In addition to her husband, of the home in University Park, she is survived by a daughter, Sara Setti Kafka, of the home; a stepson, Evan Kafka, of Greenbelt; her parents, Mr. and Mrs. Gaetano Setti, of Watertown; and a brother, Louis, of Bangkok, Thailand.

The family suggests that expressions of sympathy be in the form of contributions to the Vincent T. Lombardi Cancer Research Center at Georgetown University Hospital.