Allen E. Hoffard, 45, a public information officer for the Department of Energy, was found dead Tuesday in his apartment in northwest Washington.

An official of the D.C. Medical Examiner's Office said Mr. Hoffard apparently died Sunday. He said the cause of death was under investigation.

Mr. Hoffard had been a newspaperman and radio and television producer before becoming a government information official. He also had served as press secretary to former Sen. Wayne Morse of Oregon and had been an unsuccessful Democratic candidate for the Oregon House of Representatives in 1958.

A native of Portland, Ore., Mr Hoffard earned a bachelor's degree from Pacific University in Forest Grove, Ore. He served in the Army from 1953 to 1955, and later worked as a reporter for the Portland Oregonian and was managing editor of the Oregon Democrat. He was an assistant to the producer of the ABC news program "Issues and Answers" and was the Washington correspondent of the Portland Daily Reporter.

Mr. Hoffard's career in government included services as an information officer with the U.S. Commission on Civil Rights, the Department of Agriculture, the Federal Energy Administration here and in San Francisco, and then with the Department of Energy.

Survivors include his mother, Olga S. Hoffard, of Portland, Ore.