Henrietta Jex-Blake (June 1862 – 21 May 1953) was a British violinist, and the principal of Lady Margaret Hall, Oxford, from 1909 to 1921.
Her paternal aunt Sophia Jex-Blake was the first practising female doctor in Scotland, and a leading campaigner for medical education for women.
Henrietta Jex-Blake studied music at the Leipzig Conservatoire, Dresden, and in Vienna, and became an accomplished violinist.
[4] Between 1899 and 1909 Jex-Blake was headmistress of St Margaret's School, Polmont, Scotland, originally which was founded by Maud Mary Daniel, her sister Katherine's friend from Girton College, Cambridge.
[4] Henrietta Jex-Blake died at the White House Nursing Home, Gerrards Cross, Buckinghamshire, on 21 May 1953.