Joanna Baillie (11 September 1762 – 23 February 1851) was a Scottish poet and dramatist, known for works that include Plays on the Passions (three volumes, 1798–1812) and Fugitive Verses (1840).
Her writing exhibits an interest in moral philosophy and the Gothic.
She was critically acclaimed in her lifetime, and while living in Hampstead, associated with literary contemporaries such as Anna Barbauld, Lucy Aikin, and Walter Scott.