Ruth Packer (22 October 1910 – 12 January 2005) was an English operatic soprano.
In 1939, she made her operatic debut at the Royal Opera House, Covent Garden in Die Walküre.
After the war, she performed regularly with the newly formed Welsh National Opera.
After her retirement from the stage, Packer taught voice at the Royal College of Music, and later privately.
Packer married two Welshmen, first the tenor Tudor Davies (1892–1958), and, secondly, Maj. Ynyr Probert.