Biographia Literaria, or in full Biographia Literaria; or Biographical Sketches of MY LITERARY LIFE and OPINIONS, is an autobiography in discourse by Samuel Taylor Coleridge, which he published in 1817.

The work is long and seemingly loosely structured, and although there are autobiographical elements, it is not a straightforward or linear autobiography. Instead, it is meditative.

Critics have reacted strongly to the Biographia Literaria. Early reactions were that it was a demonstration of Coleridge's opiate-driven decline into ill health. Recent re-evaluations have given it more credit. While contemporary critics recognize the degree to which Coleridge borrowed from his sources (with straight lifts from Schelling), they also see in the work far more structure and planning than is apparent on first glance.