Thomas H. Ferguson yesterday was named president and general manager of The Washington Post, Donald E. Graham, publisher, announced.

Ferguson currently is president of Parade Publications Inc., the company that publishes Parade Magazine, the Sunday supplement which is distributed in The Post and 129 other newspapers.

Ferguson, who has been with Parade since 1972, will take the position on Dec. 1.

Ferguson will be in charge of the paper's business operations, including advertising, production and circulation matters.

Ferguson will take over the responsibilities Graham held as general manager, a position he had until being named publisher in January. The title of president has been vacant for several years.

"The Washington Post is extremely fortunate to have attracted someone of Tom Ferguson's caliber," Graham said in a statement. "In his role as president of Parade, he has successfully led one of the biggest publishing companies in the United States."

With a circulation of 21.5 million, Parade is the largest magazine in the country. Newhouse Newspapers, which owns Parade, announced that Carlo Vittorini will succeed Ferguson at Parade.

Ferguson became Parade's president in 1977. He had served as general manager and previously had been a vice president involved with marketing and newspaper relations.

Ferguson has also worked for John H. Breck Co., Berol Enterprises and American Tobacco Co.

Ferguson has a bachelors degree from St. John's University of New York and attended New York University Graduate School of Business.