| Main Entry | R | I | S | M | B | C | N |
| Jacobi, Friedrich Heinrich | X | X | X | ||||
| Jainism | X | ||||||
| Jamblicus | X | ||||||
| James, William | X | X | X | X | |||
| Jansenism | X | X | |||||
| Jaspers, Karl | X | X | |||||
| Jefferson, Thomas | X | X | |||||
| Jehovah | X | ||||||
| Jen | X | ||||||
| Jesuitism | X | ||||||
| Jewish Philosophy | X | ||||||
| Jiva | X | ||||||
| Jlvanmukta | X | ||||||
| Jnana | X | ||||||
| Jnanendriya | X | ||||||
| Jodl, Friedrich | X | ||||||
| John of Salisbury | X | X | |||||
| Joint Method | X | ||||||
| joint occurrence | X | ||||||
| Joseph, Albo | X | ||||||
| Jou | X | ||||||
| Ju | X | ||||||
| Ju chia | X | ||||||
| Ju chiao | X | ||||||
| Judaism | X | ||||||
| Judgment | X | X | |||||
| Judgment of Taste | X | ||||||
| Jung, C. G. | X | X | |||||
| just war theory | X | X | |||||
| justice | X | X | |||||
| justice, as a virtue | X | ||||||
| justice, distributive | X | ||||||
| justice, intergenerational | X | ||||||
| justice, international | X | ||||||
| justification | X | X | |||||
| justification, coherentist theories of epistemic | X | ||||||
| justification, foundationalist theories of epistemic | X | ||||||
| justification, internalist vs. externalist conceptions of epistemic | X | ||||||
| justification, public | X | ||||||
| Justin Martyr | X |