W. Carlton Eacho, 77, a prominent wholesale food executive here who was a pioneer in the frozen seafood industry and frozen food distribution, died of a lung ailment Sunday at a home he maintained in Miami Beach.

Mr. Eacho, who lived in Washington, was still active in business at the time of his death, serving as board chairman of Atlantic Institutional Supply Co., Washington Frosted Foods, Washington Cold Storage and the Washington Fish Exchange, which he founded.

A native of Richmond, Mr. Eacho came here as a boy. He began as a sea-food brboker with offices here and in Philadelphia, and became a supplier when he founded a Browsville, Tex., concern that operated shrimp trawlers in the Gulf of Mexico.

Mr. Eacho served in the Navy in both World Wars, and in the second World Wars commanded in LST squadron. He received the Purple Heart after being wounded in Africa.

He was an avid sportsman whose stables contained both racehorses and hunters.

Mr. Eacho was a director of the Metropolitan Boys Club and the Merchant and Manufacturers Association. He was a National Counselor of the United States Chamber of Commerce.

In addition to his wife, Hilda, of the home, survivors include two sons, William C. Jr., of Potomac, and Robert L. of McLean; a sister, Peggy Corcoran, of Rye, N.Y. and three grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Grace Episcopal Chuch in Silver Spring.