Albert B. Hermann, 81, a veteran campaigner for the Republican Party and a longtime official of the Republican National Committee, died Wednesday at Beebe Hospital in Lewes, Del., after a stroke.

A Washington area resident since 1938, Mr. Hermann was on vacation when he was stricken. He lived in Bethesda.

He served as executive director of the Republican National Committee from 1949 to 1952 and again from 1957 to 1961. He also served as director, campaign director and special assistant to the chairman. He was director of the speakers' bureau when he retired in about 1978.

In the 1950s, as chairman of the minorities division, he supported the special interests of blacks, ethnics and women and founded the National Republican Heritage (Nationalities) Council.

He began his political career in his native Milltown, N.J., in the 1930s, after playing third base with the old Boston Braves baseball team for eight years. He was a principal founder of the Young Republican movement in New Jersey in 1932 and served as its chairman until 1936.

Mr. Hermann successfully managed five New Jersey campaigns, all but one of which were waged during the peak days of the New Deal.

Mr. Hermann served as an administrative aide to both Sen. W. Warren Barbour and Sen. H. Alexander Smith, both from New Jersey, for 10 years before joining the RNC.

Mr. Hermann was president of the 1923 graduating class at Colgate University. He received the Lawrence Scholarship prize as best student athlete and earned 11 letters and made All American in three sports --football, basketball and baseball.

Mr. Hermann was formerly affiliated with the Berkshire Life Insurance Co. and the Hermann Baking Co. in Milltown.

Survivors include his wife, the former Sylvia B. Bernstein of Bethesda; two daughters, Ellen H. Warfield of Potomac, and JoAnn H. Emerson of DeSoto, Mo., and three grandaughters.

The family suggests that expressions of sympathy be in the form of contributions to the athletic fund at Colgate University in Hamilton, N.Y.