Frederick L. Haller, 84, a former chairman of the D.C. Board of Appeals and Review and a member and vice chairman of the District's Traffic Advisory Board for 19 years, died of an aortal aneurysm Saturday at the Washington Hospital Center. He had cancer.

Mr. Haller was a lifelong resident of Washington. He served in the Army Motor Transport Corps during World War I and then returned here to organize the District Motor Co.

Over the years, he sold Premiers, Moons, DeSotos, Chryslers and Plymouths. When he retired from the automobile business in 1952, he was selling Hudsons.

Mr. Haller also had real estate interests and remained active in that field for many years.

He was a former president of the Washington Automotive Trade Association and was president of the National Automobile Dealers Association in 1950.

About 1940, Mr. Haller was appointed to the Traffic Advisory Board. He received a distinguished service award when he retired in 1960.

In that year, he was named chairman of a newly reorganized Board of Appeals and Review, which had broad powers in the field of licensing in the city. He served in that post for six years.

Mr. Haller was a Mason and a Worshipful Master of Trinity Lodge No. 41. He was a life member of the Almas Temple of the Shrine.

He also was a life member of the American Legion, the Columbia Country Club and the University Club. He was a member of St. Alban's Episcopal Church and of its Vestry Associates, the Ushers Guild, the Every Member Canvass and other groups.

Mr. Haller's survivors include his wife, Roxie Strawn Haller of Washington, whom he married in 1927.

The family suggests that expressions of sympathy be in the form of contributions to the American Cancer Society or to the Kiwanis Foundation. c