Eliza Doolittle is a central character in George Bernard Shaw's play 'Pygmalion,' representing the struggle for social mobility and the challenges of personal transformation. As a flower girl with a strong Cockney accent, her journey to learn proper speech and manners under the tutelage of Professor Henry Higgins serves as a critique of the class distinctions prevalent in early 20th-century British society. Her character encapsulates themes of identity, transformation, and social critique, showcasing Shaw's wit in examining societal norms.