Rosalind Cecilia Hildegard Tanner (née Young) (5 February 1900 – 24 November 1992) was a mathematician and historian of mathematics.

She was born and lived in Göttingen in Germany (where her parents worked at the university) until 1908.

[4] She then studied at Girton College, Cambridge, gaining a PhD in 1929 under the supervision of Professor E. W. Hobson[5] for research on Stieltjes integration.

[3] After 1936, most of her research was in the history of mathematics, and she had a particular interest in Thomas Harriot, an Elizabethan mathematician.

Rosalind married William Tanner in 1953; however, he died a few months after their marriage.