Susan Feilding, Countess of Denbigh (née Villiers; 1583–1652) was an English courtier.

[1] She was appointed First Lady of the Bedchamber to the queen, Henrietta Maria, in 1626, and kept this office for the rest of her life.

During the English Civil War, her husband, the Earl of Denbigh, supported and fought for King Charles I of England, while her son, Basil, joined the Parliamentarian forces.

[3] She was the patron of Richard Crashaw, who dedicated his sacred poems to her, in hearty acknowledgment of his immortal obligation to her goodness and charity, and addressed to her a poem persuading her — to render herself without further delay into the communion of the Catholic Church.

[5] The Countess of Denbigh had five children: In 2023, Susan Feilding is portrayed by Alice Grant in Mary & George, a British historical drama television miniseries created by D. C. Moore and directed by Oliver Hermanus, based on Benjamin Woolley's non-fiction book The King's Assassin (2017).