- I and Thou
- "I Have a Dream"
- Ibis
- Id, The Ego and the
- Ideas, Adventures of
- Ideas; Six Great
- Identity, Of Personal
- Idiot, The
- Idols, Twilight of the
- Idomeneus, Letter to
- Iliad
- Illusion, The Future of an
- Ilych, The Death of Ivan
- Imaginary Invalid, The
- Imitation of Christ, On the
- Immortality, Ode on Intimations of
- Importance, A Woman of No
- Importance of Being Earnest, The
- Impostor, The
- Impressions, Winter Notes on Summer
- Inaugural Address, 1st (Lincoln)
- Inaugural Address, 2nd (Lincoln)
- Incarnation, On the
- Independence, Declaration of
- Indestructibility of Our Inner Nature, The
- Individual Freedom
- Inequality, On the Origin of
- Inferno
- Inhibitions, Symptoms, and Anxiety
- Injuries of the Head, On
- Inner Nature, The Indestructibility of Our
- Innocence, Songs of
- Innocents Abroad
- Inquiry; Logic, the Theory of
- Inquiry Concerning Human Understanding, An
- Inquiry into Meaning and Truth, An
- Inquiry Concerning the Principles of Morals, An
- Instincts and Their Vicissitudes
- Institutes of the Christian Religion
- Instruments of Reduction
- Intellect: Mind Over Matter
- Intercourse, Truth of
- Interior Castle
- Interpretation, On
- Interpretation of Dreams, The
- Intimations of Immortality, Ode on
- Introduction to Arithmetic
- Introduction to Mathematical Philosophy
- Introduction to Mathematics, An
- Introduction to Metaphysics
- Introduction to the Metaphysics of Morals
- Introduction to the Principles of Morals and Legislation
- Introduction to the Propyläen
- Introduction to Psychoanalysis, A General
- Introduction to the Study of Experimental Medicine
- Introductory Lectures on Psychoanalysis
- Introductory Lectures on Psychoanalysis, New
- Invisible Man, The
- Invalid, The Imaginary
- Ion (Euripides)
- Ion (Plato)
- Iphigenia Among the Taurians
- Iphigenia at Aulis
- Island, Treasure
- Island of Doctor Moreau, The
- Isthmian Odes
- Italy, A Sentimental Journey Through France and
- Ivan Denisovich, One Day in the Life of
- Ivan the Fool
- Ivan Ilych, The Death of
- Ivanhoe
- Ode on Intimations of Immortality
- Personal Identity, Of