Alison Weir (ne Matthews) is a British author and public historian. She primarily writes about the history of English royal women and families, in the form of biographies that explore their historical setting. She has also written numerous works of historical fiction.

Her first work, Britain's Royal Families (published in 1989), was a genealogical overview of the British royal family. She subsequently wrote biographies of Eleanor of Aquitaine, Isabella of France, Katherine Swynford, Elizabeth of York, and the Princes in the Tower. Other focuses have included Henry VIII and his family and England's Medieval Queens.

Weir has published historical overviews of the Wars of the Roses and royal weddings, as well as historical fiction novels on English queens, including each wife of Henry VIII.

Librarian Note: There is more than one author in the GoodReads database with this name. Alison Weir is an English writer of history books for the general public, mostly in the form of biographies about British kings and queens, and of historical fiction. Before becoming an author, Weir worked as a teacher of children with special needs. She received her formal training in history at teacher training college. She currently lives in Surrey, England, with her two children.