Sadie Grant Pack (December 20, 1877 – August 24, 1960) was the first counselor to May Anderson in the general presidency of the Primary of the Church of Jesus Christ of Latter-day Saints from 1925 to 1929. From 1904 to 1906 while her husband was a student at Columbia University, Sadie was president of the LDS Relief Society in New York and Brooklyn. Pack and her husband were the parents of four children. Pack died in Salt Lake City, Utah. Saide Grant Pack was a granddaughter of prominent church leader Jedediah M. Grant and was a niece to LDS Church president Heber J. Grant.