Dr. Morton S. Kaufman, 71, an obstetrician and gynecologist who had been closely associated with Sibley Memorial Hosptial, died of kidney disease Tuesday at Georgetown University Hospital.

He had been chief of obstetrics and gynecology at Sibley from 1954 until 1967. He remained on the staff until retiring last January, when he also retired from private practice.

While at Sibley, Dr. Kaufman played a key role in the hospital's move in 1961 from its North Capitol Street building to its present location on Loughboro Road NW.

In 1969, he received the Achievement Award of the Sibley Medical Association.

Dr. Kaufman was born in Chicago. He graduated from the University of Michigan and the University of Louisville Medical School. He interned at Montefiore Hospital in Pittsburgh and served his residencies at the Chicago Maternity Center and Chicago Lying-In Hospital.

Dr. Kaufman, who lived in Washington, began his practice here in 1937.

He had been president of the District of Columbia Society of Obstetrics and Gyneclogy and a member of Alpha Omega Alpha, an honorary medical society. He was on the board of governors of Woodmont Country Club and belonged to Washington Hebrew Congregation.

He is survived by his wife, Janice L., of Washington; two sons, Kenneth, of Potomac, and Robert, of Munster, Ind.; a daughter, Linda Hurst of Munster, and five grandchildren.