Harvey T. Casbarian Sr., 74, a certified public accountant in the Washington area for many years, died Monday at Holy Cross Hospital in Silver Spring. He was recovering from abdominal surgery and suffered a heart attack.

A native of Tuxedo, Md., Mr. Casbarian became a budget accountant and cashier at the University of Maryland in 1923. At the same time, he was a student at Southeastern University in Washington and Graduated in 1925 with a bachelor's degree in business.

In 1934, he was promoted to comptroller of the University of Maryland. He retained that position until 1943, when he opened his own firm. It became Casbarian, Johnson and Coyne. In 1970, it merged with the A. M. Pullen Co. of Greensboro, N.C. Mr. Casbarian retired in 1973 as a senior consultant of the Company.

In addition to his regular work, he had tought accounting at Southeastern University. He also served as a director of the University's graduate school and was a member of its board of trustees.

In 1966, he was appointed to the Maryland State Board of Public Accountancy and served as its chairman from 1969 until he retired in 1972. He was a member of Beta Alpha Psi, an honorary accounting society, a former president of the Maryland Association of Certified Public Accountants and recipient of a citation from it in 1972, and a member of the American and D.C. institutes of certified public accountants. He was a member of the American Arbitration Association.

Mr. Casbarian also was a member of the advisory board of Suburban Trust Co. and a director of the Colonial Bank and Trust Co. of Annapolis until 1974, when it merged with Suburban Trust.

Mr. Casbarian lived in Sherwood Forest near Annapolis for many years and was a former director of the Sherwood Forest Club. He received the club's Severn River Trophy in 1968 for service to the community.He also was a member of the Annapolis Yacht Club and the Naval Academy Golf Association.

In addition, Mr. Casbarian was a charter member and former treasurer of the College Park Rotary Club, a member of the Terrapin Club at the University of Maryland, a 32d degree Mason and a Shriner. He was a member of the Legion of Honor of the Order of Demolay.

Since 1969, Mr. Casbarian had lived in Silver Spring with his wife, Frances. He was a member of National Presbyterian Church in Washington.

In addition to his wife, his survivors include a daughter, Mary Louise Sansbury, of Greenbelt; two sons, Harvey T. Jr., of University Park, and James E., of the home, and five grandchildren.