Louis Sorett, 65, an official of the Office of Federal Procurement Policy in the Office of Management and Budget, died Sunday at Suburban Hospital in Bethesda. He was stricken while playing tennis at the Cabin John Recreation Center.

Mr.Sorett, who was born in Newark, N.J., graduated from Yale University in 1938. During World War II, he served in the Army in North Africa and Italy, rising to the rank of major. After the war, he moved to Harrisburg, Pa., where he was founder and co-owner of the Capitol Surgical Supply Co. He was president of the firm until 1969, when it was sold.

Mr.Sorett then moved to Washington and began his federal career as special assistant to the Commissioner of the Federal Supply Service in the General Services Adminstration. In 1974, he transferred to the Office of Federal Procurement Policy in OMB. He was deputy assistant administrator of that agency at the time of his death.

Survivors include his wife, Felice H., of Washington; two sons, Henry, of Cambridge, Mass., and Stephen, of Silver Spring; one brother, Dr. Joseph Sorett of South Orange, N.J., and two sisters, Lottie Simkin of Great Neck, N.Y., and Sylvia Ziegler of Stroudsburg, Pa.

The family suggests that expressions of sympathy be in the form of contributions to a scholarship fund to be established in Mr. Sorett's name at Yale University, New Haven, Conn.