George Cochran Doub, 79, a former U.S. attorney for Maryland who was an assistant attorney general of the United States from 1956 to 1961, died of arteriosclerotic cardiovascular disease Friday at his home in Owings Mills, Md.

Mr. Doub served as assistant attorney general in charge of the civil and claims divisions of the Justice Department. A December 1960 editorial in The Post said that "perhaps Mr. Doub's most notable accomplishment has been the final redress of the claims by Japanese-Americans arising from the enforced evacuations, confiscations and internments during the war and the restoration of American citizenship to virtually all those who were led to renounce it. It is a record of which he is and should be proud."

In a 1958 speech, Mr. Doub had said that government actions against Japanese-Americans during the war "constituted a tragic failure of principle by the executive power in accomplishing it and of the judicial power in sustaining it. The voices which opposed the measures were pathetically few."

Among his other accomplishments at Justice was his work on revisions of government security programs that limited the strictest security tests only to those government employes in sensative positions.

The Post, in an editorial, said that such a revision was the beginning of rationality and the key to making the program genuinely protective instead of senselessly punitive."

After leaving Washington, Mr. Doub practiced law in Baltimore until retiring in 1973. He was an attorney during the late 1960s and early 1970s for former Rep. Thomas F. Johnson (D-Md.) during the congressman's unsuccessful fight against federal corruption charges.

He was a native of Cumberland, Md., and was a graduate of the Episcopal High School in Alexandria. He was a graduate of Johns Hopkins University and was a 1926 graduate of the University of Maryland's law school. He served in the Pacific as a Navy combat intelligence officer during World War II.

He was a member of the Metropolitan Club.

His wife, the former Sophie Tayloe Snyder, died in 1978. Survivors include two daughters, Ann A. Marzin of Lyons, France; Sophie T. Burnham of Washington; a son, George C. Jr., of Owings Mills; two sisters, Elizabeth Glasgow of Washington, and Anne Peyton Doub of Cumberland, and 8 grandchildren.