St Hilda's College is one of the constituent colleges of the University of Oxford in England. The college is named after the Anglo-Saxon saint Hilda of Whitby and was founded in 1893 as a hall for women; it remained a women's college until 2008. St Hilda's was the last single-sex college in the university as Somerville College had admitted men in 1994. The college now has almost equal numbers of men and women at both undergraduate and postgraduate level.

The University of Oxford has thirty-nine colleges, and four permanent private halls (PPHs) of religious foundation. Colleges and PPHs are autonomous self-governing corporations within the university. These colleges are not only houses of residence, but have substantial responsibility for teaching undergraduate students. Generally tutorials and classes are the responsibility of colleges, while lectures, examinations, laboratories, and the central library are run by the university. Students normally have most of their tutorials in their own college, but often have a couple of modules taught at other colleges or even at faculties and departments. Most colleges take both graduates and undergraduates, but several are for graduates only.