Maurice W. Geens, 75, who served as an Army intelligence officer in World War II and the Korean conflict, died Thursday at the Veterans Administration Hospital in Perry Point, Md.

A resident of the Washington area during much of the last 40 years he had lived here permanently since 1963.

Born in Malines, Belgium, Mr. Geens came to this country in about 1935. He worked for an insurance firm in Washington just prior to World War II. He entered military service in 1942 as a reserve officer.

Mr. Geens, who was fluent in a number of languages, was in counter-intelligence work in Europe during World War II and was serving in Paris at the war's end.

He then left military service, but was recalled to active duty in 1957. He spent the next three years with occupation forces in Germany and then was sent to Korean during the conflict there.

His last military assignment was chief of the counter-intelligence officer in New Orleans. He retired in 1957.

Mr Geens then was program planning officer for the Agency of International Development, assigned to Vientiane, Laos, for three years. He was a Defense Department international relations officer in Okinawa for 18 months before a second retirement.

His many decorations included Bronze Stars for World War II and Korea, the French Croix de Guerre, the Belgian Order of Leopold, the Netherlands Order of Orange-Nassau and the Korean Ulchi Distinguished Service Medal.

Mr. Geens was a member of St. Matthew's Catholic Cathedral in Washington and Augustus P. Gardner Post No. 18 of the American Legion.

He is survived by his wife, Ione McClellan Geens, of the home in Arlington; a daughter, Mrs. George G. Tyrrell of South Easton, Mass., and a sister, Madeleine Vekeman, of Bethesda.