Virginia Frances, Lady Twisleton-Wykeham-Fiennes (9 July 1947 – 20 February 2004) was an explorer, and the wife of an adventurer, Ranulph Fiennes.
She was the first woman to be awarded the Polar Medal, and as such was invited to join the Antarctic Club in recognition of her research work for the British Antarctic Survey and University of Sheffield into very low frequency radio propagation.