Frank D. Collins, 66, a teacher at Walter Johnson High School in Bethesda and a government official for more than 20 years, died at Suburban Hospital Thursday as the result of a cerebral hemmorhage.

Mr. Collins began his government career in 1942 with the War Department. Shortly after World War II, he switched to the State Department. His assignments included four years in Calcutta India, as a consular officer and two years in The Hague, the Netherlands as a political officer. He retired in 1964.

While in India, he worked with Mother Teresa, who has a worldwide reputation for her efforts in behalf of lepers. He was active in the Coworkers of Mother Teresa in America.

Mr. Collins began teaching history at Walter Johnson High School when he left the State Department and was a current member of its faculty. He also coached the teams the school entered in the television program, "It's Academic."

Mr. Collins was born in Chicago and earned bachelor's and master's degrees at Loyola University. He taught in Chicago public schools before moving to this area.

He was a member of the Diplomatic and Consular Officer, Retired (DACOR), the Montgomery County Education Association.

Survivors include his wife, Violet, of the home in Bethesda; a duaghter, Mary Dugan, of Gaithersburg, three sons, Gregory, of Annandale, Richard, of Baltimore, and Timothy, of the home; a sister, Nora Hurley, of Chicago, and three grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Coworkers of Mother Teresa of America, Inc., c/o Msgr. J. Richard Feisen, Box 6546, Rochester, Minn., 55901, or to a charity of one's choice.