William F. Dobbins, 53, director of the export trade services division of the Department of Agriculture's Foreign Argicultural Service, died of cancer Dec. 14 at Alexandria Hospital.

Mr. Dobbins has organized and managed trade fairs throughout Europe and in Japan and Hong Kong.

He joined Agriculture in 1955 as an economist and had been trade fair manager before being appointed director of export trade services in 1975. He also was an asistant agricultural attache in Italy from 1968 to 1970.

Mr. Dobbins served in the Army in Europe during World War II and in Korea during the conflict there.

He was born in Bluefield, W.Va., and earned a bachelor's degree in agricultural economics from Virginia Polytechnic Institute in Blacksburg, now known as Virginia Tech.

Mr. Dobbins had earned two certificates of merit from the Department of Agriculture.

He lived in Franconia and was a member of the Franconia United Methodist Church. He was active in the Fairfax County and Virginia state junior chambers of commerce.

Survivors include his wife, Ruth of Franconia; a stepdaughter, Sandra Famiglietti of Brick Town, N.J.; his parents, retired Col. and Mrs. E. E. Dobbins of Blacksburg, and a brother, James, of Manassas.