John Aikin (Unitarian) (1713–1780), English Unitarian scholar and theological tutor, closely associated with Warrington Academy, father of Anna and John
Anna Aikin (1743–1825), better known as Anna Laetitia Barbauld, a woman of letters who published in many genres
John Aikin (1747–1822), English physician, father of Arthur, Edmund and Lucy
Arthur Aikin (1773–1854), English chemist, mineralogist and scientific writer