Bradford Girls' Grammar School is a free school for girls aged 5 – 16 and boys aged 5 – 11. Founded in 1875, the school is on the outskirts of Bradford city centre in West Yorkshire, England. Recent public examination results put the school top in Bradford and among the top three in Yorkshire. Bradford Girls has a debating society, which Barbara Castle attended when at the school.

Previously a private school, it became a free school in 2013, and no longer charges for admission.

An outline history of the school, with photographs, is available on the BGGS website. For many years, the school publication was known as The Chronicle. The school celebrated its centenary in 1975.

• Miss Porter, Headmistress from 1875
• Miss Stocker
• Miss Roberts, 1894–1927
• Miss Hooke, 1927–1955
• Miss M.M. Black, 1955–1975
• Miss R.M. Gleave, 1975–1986
• Mrs L. Warrington, 1986–2009
• Mrs K. Matthews, 2009–2020
• Mrs C Martin, 2020-2024
• Caroline Foster, 2024-current

This article's list of alumni may not follow Wikipedia's verifiability policy. Please improve this article by removing names that do not have independent reliable sources showing they merit inclusion in this article AND are alumni, or by incorporating the relevant publications into the body of the article through appropriate citations. (September 2023)

• Juliet Barker, British historian.
• Linda Barker, English interior designer and television presenter.
• Marion Bidder, British physiologist.
• Barbara Castle, Baroness Castle of Blackburn (1910-2002), British Labour Party politician.
• Thangam Debbonaire, British Labour Party politician.
• Elizabeth Denby (1894–1965), English social housing expert and consultant.
• Anne Dyer, first female bishop in the Scottish Episcopal Church.
• Ruby Ferguson (1899–1966), née Rubie Constance Ashby, writer of popular fiction, including children's books.
• Isabel Hilton, journalist.
• Jennifer Ingleheart, Professor of Latin at Durham University.
• Melanie Kilburn, English actress.
• Natalia Kills, English singer-songwriter.
• Julia Longbottom, diplomat.
• Lizzie Mickery, British writer and former actress
• Dorothy Miell, academic
• Louisa Pesel, embroiderer, educator and textile collector.
• Anita Rani, English radio and television presenter, and journalist.
• Helene Reynard, Economist and college administrator.
• Jo Shaw, legal scholar
• Mary Tamm, Actress.
• Anna Watts, astrophysicist.