| JAP | Adler, Alfred (1870-1937) |
| JAQ | Adorno, Theodor (Wiesengrund) (1903-1969) |
| JAR | Alain (Émile Chartier) (1868-1951) |
| JAS | Alembert, Jean-Baptiste le Rond d' (1717-1783) |
| JAT | Alexander, Samuel (1859-1938) |
| JAV | Althaus, Paul (jr.) (1888-1966) |
| JAW | Althusius, Johannes (1557-1638) |
| JAX | Arndt, Ernst Moritz (1769-1860) |
| JAY | Arnd (Arndt), Johann (1555-1621) |
| JAZ | Arnold, Gottfried (1666-1714) |
| JBB | Baader, Franz Xaver (1765-1841) |
| JBC | Bacon, Francis (1561-1626) |
| JBD | Ballauf, Theodor (1911-) |
| JBE | Barth, Karl (1886-1968) |
| JBF | Basedow, Johann Bernhard (1723-1790) |
| JBH | Bauch, Bruno (1877-1942) |
| JBI | Bauer, Bruno (1809-1882) |
| JBJ | Baumgarten, Alexander Gottlieb (1717-1762) |
| JBK | Baur, Ferdinand Christian (1792-1860) |
| JBL | Bayle, Pierre (1674-1706) |
| JBN | Bellarmino, Roberto (1542-1621) |
| JBO | Beneke, Friedrich Eduard (1798-1854) |
| JBP | Bengel, Johann Albrecht (1687-1752) |
| JBQ | Benjamin, Walter (1892-1940) |
| JBR | Berdiaev, Nikolai Aleksandrovich (1874-1948) |
| JBT | Bergson, Henri (1859-1941) |
| JBU | Berkeley, George (1685-1753) |
| JBW | Bloch, Ernst (1885-1977) |
| JBX | Blondel, Maurice (1861-1943) |
| JCA | Bodelschwingh, Friedrich von (1831-1910) |
| JCB | Bodin, Jean (1530-1596) |
| JCC | Boehme, Jakob (1575-1624) |
| JCE | Bollnow, Otto Friedrich (1903-) |
| JCF | Bolzano, Bernhard (1781-1848) |
| JCG | Bonhoeffer, Dietrich (1906-1945) |
| JCH | Bonnet, Charles (1729-1793) |
| JCK | Brentano, Franz (1838-1917) |
| JCL | Brenz, Johannes (1499-1570) |
| JCM | Brunner, Emil (1889-1966) |
| JCN | Bruno, Giordano (1548-1600) |
| JCO | Buber, Martin (1878-1965) |
| JCQ | Bucer, Martin (1491-1551) |
| JCR | Buddeus, Johann Franz (1667-1729) |
| JCS | Büchner, Ludwig (1824-1899) |
| JCW | Bugenhagen, Johannes (1485-1558) |
| JCX | Bultmann, Rudolf (1884-1976) |
| JCY | Burke, Edmund (1729-1797) |
| JDA | Calvin, Johannes (1509-1564) |
| JDC | Campanella, Thomas (1568-1639) |
| JDD | Campe, Joachim Heinrich (1746-1818) |
| JDF | Canisius, Petrus (Pieter de Hondt) (1521-1597) |
| JDI | Carnap, Rudolf (1891-1970) |
| JDJ | Carus, Carl Gustav (1789-1869) |
| JDK | Cassirer, Ernst (1874-1945) |
| JDN | Clarke, Samuel (1675-1729) |
| JDO | Cohen, Hermann (1842-1918) |
| JDP | Cohn, Jonas (1869-1947) |
| JDQ | Comenius, Johann Amos (1592-1670) |
| JDR | Comte, Auguste (1798-1857) |
| JDS | Condillac, Etienne Bonnet de (1715-1780) |
| JDT | Condorcet, Marie Jean Antoine (1743-1794) |
| JDV | Croce, Benedetto (1866-1952) |
| JDW | Crusius, Christian August (1715-1775) |
| JDX | Dalman, Gustav (Gustav Hermann Marx) (1855-1941) |
| JDY | Darwin, Charles Robert (1809-1882) |
| JEA | Derbolav, Joseph (1912-) |
| JEB | Descartes, René (1596-1650) |
| JEC | Dessoir, Max (1867-1947) |
| JED | Dewey, John (1859-1952) |
| JEE | Diderot, Denis (1713-1784) |
| JEG | Diesterweg, Adolf (1790-1866) |
| JEH | Dilthey, Wilhelm (1833-1911) |
| JEI | Dinter, Gustav Friedrich (1760-1831) |
| JEJ | Dodd, Charles Harold (1884-1973) |
| JEK | Döllinger, Ignaz von (1799-1890) |
| JEM | Dörpfeld, Friedrich Wilhelm (1824-1893) |
| JEN | Drey, Johann Sebastian von (1777-1853) |
| JEO | Driesch, Hans (1867-1941) |
| JEP | Dühring, Karl Eugen (1833-1921) |
| JEQ | Durkheim, Émile (1858-1917) |
| JES | Ebbinghaus, Hermann (1850-1909) |
| JET | Ebeling, Gerhard (1912-) |
| JEU | Edwards, Jonathan (1703-1758) |
| JEW | Ehrenfels, Christian Frh. von (1859-1932) |
| JEY | Engels, Friedrich (1820-1895) |
| JEZ | Erasmus von Rotterdam (1466/69-1536) |
| JFA | Eucken, Rudolf (1846-1926) |
| JFC | Fechner, Gustav Theodor (1801-1887) |
| JFE | Felbiger, Johann Ignaz von (1724-1788) |
| JFF | Fellenberg, Philipp Emanuel (1771-1844) |
| JFG | Fenelon, François (1651-1715) |
| JFH | Feuerbach, Ludwig (1804-1872) |
| JFI | Fichte, Johann Gottlieb (1762-1814) |
| JFK | Fischer, Aloys (1880-1937) |
| JFM | Foerster, Friedrich Wilhelm (1869-1966) |
| JFN | Francke, August Hermann (1663-1727) |
| JFP | Frege, Gottlob (1848-1925) |
| JFQ | Freud, Sigmund (1856-1939) |
| JFR | Freyer, Hans (1887-1969) |
| JFS | Frick, Otto (1832-1892) |
| JFT | Fries, Jacob (1771-1843) |
| JFU | Frischeisen-Köhler, Max (1878-1923) |
| JFW | Fröbel, Friedrich (1782-1852) |
| JFX | Fromm, Erich (1900-) |
| JFY | Gadamer, Hans Georg (1900-) |
| JFZ | Gaudig, Hugo (1860-1923) |
| JGA | Gehlen, Arnold (1904-1976) |
| JGC | Gentile, Giovanni (1875-1944) |
| JGD | Gilson, Étienne (1884-1978) |
| JGE | Görres, Jeseph von (1776-1848) |
| JGG | Gogarten, Friedrich (1887-1967) |
| JGI | Gollwitzer, Helmut (1908-) |
| JGJ | Gottsched, Johann Christoph (1700-1766) |
| JGK | Grabmann, Martin (1875-1949) |
| JGL | Gracián y Morales, Baltasar (1601-1658) |
| JGM | Grisebach, Eberhard (1880-1945) |
| JGO | Grotius, Hugo (1583-1645) |
| JGP | Grundtvik, Nikolai Frederik Severin (1783-1872) |
| JGQ | Guardini, Romano (1885-1968) |
| JGR | Gurlitt, Ludwig (1855-1931) |
| JGS | Guths Muths, Johann Christoph Friedrich (1759-1839) |
| JGU | Habermas, Jürgen (1929-) |
| JGV | Häberlin, Paul (1878-1960) |
| JGW | Haeckel, Ernst (1834-1919) |
| JGX | Haecker, Theodor (1879-1945) |
| JGY | Hamann, Johann Georg (1730-1788) |
| JHA | Harnack, Adolf von (1851-1930) |
| JHB | Harnisch, Christian Wilhelm (1787-1864) |
| JHC | Hartmann, Eduard von (1842-1906) |
| JHD | Hartmann, Nicolai (1882-1950) |
| JHE | Hegel, Georg Wilhelm Friedrich (1770-1831) |
| JHG | Heidegger, Martin (1889-1976) |
| JHH | Heiler, Friedrich (1892-1967) |
| JHI | Heimsoeth, Heinz (1886-1975) |
| JHJ | Helvétius, Claude Adrien (1715-1771) |
| JHL | Herbart, Johann Friedrich (1776-1841) |
| JHN | Hermes, Georg (1775-1831) |
| JHO | Herrmann, Wilhelm (1846-1922) |
| JHP | Hirsch, Emanuel (1888-1972) |
| JHR | Hobbes, Thomas (1588-1679) |
| JHS | Hönigswald, Richard (1875-1947) |
| JHT | Holbach, Paul Heinrich Dietrich Baron von (1723-1789) |
| JHU | Holl, Karl (1866-1926) |
| JHV | Horkheimer, Max (1895-1973) |
| JHX | Humboldt, Wilhelm von (1767-1835) |
| JHY | Hume, David (1711-1776) |
| JHZ | Husserl, Edmund (1859-1938) |
| JIA | Hutten, Ulrich von (1488-1523) |
| JIB | Huxley, Thomas Henry (1825-1895) |
| JID | Iselin, Isaak (1728-1782) |
| JIE | Jacobi, Friedrich Heinrich (1783-1819) |
| JIF | Jaensch, Erich Rudolf (1883-1940) |
| JIG | Jahn, Friedrich Ludwig (1778-1852) |
| JIH | James, William (1842-1910) |
| JIJ | Jansen, Cornelis (Cornelius Jansenius) (1585-1638) |
| JIK | Jaspers, Karl (1883-1969) |
| JIM | Jung, Carl Gustav (1875-1961) |
| JIN | Jungius, Joachim (1587-1657) |
| JIP | Kähler, Martin (1835-1912) |
| JIQ | Kant, Immanuel (1724-1804) |
| JIR | Karlstadt, Andreas (Andreas Bodenstein) (ca. 1480-1541) |
| JIS | Kassner, Rudolf (1873-1959) |
| JIU | Kerényi, Karoly (Karl) (1897-1973) |
| JIV | Kerschensteiner, Georg (1854-1932) |
| JIW | Ketteler, Wilhelm Emmanuel Frh. von (1811-1877) |
| JIX | Key Ellen (1849-1926) |
| JIY | Keyserling, Hermann Graf (1880-1946) |
| JJA | Kierkegaard, Sören (1813-1855) |
| JJD | Klages, Ludwig (1872-1956) |
| JJE | Kleutgen, Joseph (1811-1883) |
| JJG | Knox, John (1513-1572) |
| JJH | Kolping, Adolf (1813-1865) |
| JJI | Kretschmer, Ernst (1888-1964) |
| JJJ | Krieck, Ernst (1882-1947) |
| JJK | Kroh, Oswald (1887-1955) |
| JJM | Krueger, Felix (1874-1948) |
| JJN | Külpe, Oswald (1962-1915) |
| JJO | Kuhn, Johannes Evangelist von (1806-1887) |
| JJP | Labadie, Jean de (1610-1674) |
| JJQ | Lagarde, Paul (Anton) de (Paul Anton Bötticher) (1827-1891) |
| JJS | Lamenais, Hugues-Félicité-Robert de (1782-1854) |
| JJT | Lamettrie, Julien Offray de (1709-1751) |
| JJU | Langbehn, August Julius (Pseud.: Rembrandt-Deutscher) (1851-1907) |
| JJV | Lange, Friedrich Albert (1828-1875) |
| JJW | Lange, Helene (1848-1930) |
| JJZ | La Rochefoucault, François Duc de (1613-1680) |
| JKA | Lavater, Johann Kaspar (1741-1801) |
| JKB | Lavelle, Louis (1883-1951) |
| JKC | Le Bon, Gustave (1841-1931) |
| JKD | Leibniz, Gottfried Wilhelm Fhr. von (1646-1716) |
| JKF | Lenin, Vladimir Ilich (Vladimir Ilich Ulianov) (1870-1924) |
| JKG | Le Senne, René (1882-1954) |
| JKI | Lichtenberg, Georg Christoph (1742-1799) |
| JKJ | Liebmann, Otto (1840-1912) |
| JKL | Lietz, Hermann (1868-1919) |
| JKM | Lietzmann, Hans (1875-1942) |
| JKN | Liguori, Alfonso Maria de (1696-1787) |
| JKO | Lipps, Theodor (1851-1914) |
| JKP | Litt, Theodor (1880-1962) |
| JKR | Locke, John (1632-1704) |
| JKS | Löwith, Karl (1897-1973) |
| JKT | Lotze, Rudolf Hermann (1817-1881) |
| JKU | Ignatius von Loyola (1491-1556) |
| JKV | Lubac, Henry de (1896-) |
| JKX | Lukacs, György (Georg) von (1885-1971) |
| JKY | Luther, Martin (1483-1546) |
| JKZ | Mach, Ernst (1838-1916) |
| JLA | Macchiavelli, Niccolò (1469-1527) |
| JLB | Maistre, Joseph Marie Comte de (1753-1821) |
| JLD | Makarenko, Anton Semenovich (1888-1939) |
| JLE | Malebranche, Nicole (1638-1715) |
| JLF | Mannheim, Karl (1893-1947) |
| JLG | Mao Tse-tung (1893-1976) |
| JLI | Marcel, Gabriel (1889-1973) |
| JLJ | Marcuse, Herbert (1898-1979) |
| JLK | Marcuse, Ludwig (Pseud.: Heinz Rabe) (1894-1971) |
| JLL | Maritain, Jacques (1882-1973) |
| JLM | Marx, Karl Heinrich (1818-1883) |
| JLO | Melanchthon, Philipp (Philipp Schwarzert) (1497-1560) |
| JLP | Mendelsson, Moses (1729-1786) |
| JLQ | Merleau-Ponty, Maurice (1908-1961) |
| JLR | Meumann, Ernst (1862-1915) |
| JLS | Michelet, Karl Ludwig (1801-1893) |
| JLU | Milde, Vincenz Eduard (1777-1853) |
| JLV | Mill, John Stuart (1806-1873) |
| JLW | Mitscherlich, Alexander (1908-1982) |
| JLX | Möhler, Johann Adam (1796-1838) |
| JLY | Molinos, Miguel (1628-1696) |
| JMB | Montesquieu Charles de Secondat, Baron de la Brède et de (1689-1755) |
| JMC | Montessori, Maria (1870-1952) |
| JMD | Moore, George Edward (1873-1958) |
| JME | More, Sir Thomas (Thomas Morus) (1478-1535) |
| JMG | Mosheim, Johann Lorenz von (1694-1755) |
| JMH | Münzer (Müntzer), Thomas (ca. 1490-1525) |
| JMI | Natorp, Paul (1954-1924) |
| JMJ | Neander, Johann August Wilhelm (1789-1850) |
| JMK | Nelson, Leonard (1882-1927) |
| JMM | Newman, John Henry (1801-1890) |
| JMN | Nicolai, Friedrich (1733-1811) |
| JMO | Niebuhr, Reinhold (1892-1971) |
| JMP | Niemeyer, August Hermann (1754-1828) |
| JMQ | Nietzsche, Friedrich (1844-1900) |
| JMS | Nohl, Hermann (1879-1960) |
| JMU | Oberlin, Johannes Friedrich (1740-1826) |
| JMV | Oetinger, Friedrich Christoph (1702-1782) |
| JMW | Ortega y Gasset, José (1883-1955) |
| JMY | Osiander, Andreas (Andreas Hosemann) (1498-1552) |
| JMZ | Otto, Berthold (1859-1933) |
| JNA | Otto, Rudolf (1869-1937) |
| JNB | Overbeck, Franz Camille (1837-1905) |
| JNC | Overberg, Bernhard Heinrich (1754-1826) |
| JNE | Pannwitz, Rudolf (1881-1969) |
| JNF | Paracelsus (Theophrastus Bombastus von Hohenheim) (1493-1541) |
| JNG | Pascal, Blaise (1623-1662) |
| JNH | Paulsen, Friedrich (1846-1908) |
| JNK | Peirce, Charles (Santiago) Sanders (1839-1914) |
| JNL | Pestalozzi, Johann Heinrich (1746-1827) |
| JNM | Petersen, Peter (1884-1952) |
| JNN | Petzelt, Alfred (1886-1967) |
| JNO | Pfänder, Alexander (1870-1941) |
| JNQ | Piaget, Jean (1896-1980) |
| JNR | Plekhanov, Georgii Valentinovich (1856-1918) |
| JNS | Popper, Karl Raimund (1902-) |
| JNT | Pufendorf, Samuel Frh. von (1632-1694) |
| JNU | Rhadakrischnan, Sarwapalli (1888-1975) |
| JNW | Rahner, Karl (1904-1984) |
| JNX | Ramus, Petrus (Pierre de la Rámee) (1515-1572) |
| JNY | Ratke (Ratichius), Wolfgang (1571-1635) |
| JNZ | Rehmke, Johannes (1848-1930) |
| JOA | Reich, Wilhelm (1897-1957) |
| JOB | Reichenbach, Hans (1891-1953) |
| JOC | Reichwein, Adolf (1898-1944) |
| JOD | Reimarus, Hermann Samuel (1694-1768) |
| JOE | Rein, Wilhelm (1847-1929) |
| JOF | Reinhold, Karl Leonhard (1758-1823) |
| JOH | Renan, (Joseph) Ernest (1823-1892) |
| JOI | Reuchlin, Johannes (1455-1522) |
| JOJ | Rickert, Heinrich (1863-1936) |
| JOK | Riehl, Alois (1844-1924) |
| JOL | Ritschl, Albrecht (1822-1589) |
| JON | Rochow, Friedrich Eberhard von (1734-1805) |
| JOO | Rosenkranz, Johann Karl Friedrich (1805-1879) |
| JOP | Rosenstock-Huessy, Eugen (1888-1973) |
| JOR | Rothacker, Erich (1888-1965) |
| JOT | Rothe, Richard (1799-1867) |
| JOU | Rousseau, Jean-Jaques (1712-1778) |
| JOV | Royce, Josiah (1855-1916) |
| JOW | Ruge, Arnold (1803-1880) |
| JOX | Russell, Bertrand (1872-1970) |
| JOZ | Sailer, Johann Michael (1751-1832) |
| JPA | Saint Simon, Claude Henri de Rouvroy (1760-1825) |
| JPB | Salzmann, Christian Gotthilf (1744-1811) |
| JPC | Santayana, George (1863-1952) |
| JPD | Sartre, Paul (1905-1980) |
| JPF | Scheeben, Matthias Josef (1835-1888) |
| JPG | Scheler, Max (1874-1928) |
| JPH | Schell, Hermann (1850-1906) |
| JPI | Schelling, Friedrich Wilhelm Joseph von (1775-1854) |
| JPK | Schiller, Ferdinand Canning Scott (1864-1937) |
| JPM | Schlatter, Adolf (1852-1938) |
| JPO | Schleiermacher, Friedrich Ernst Daniel (1768-1839) |
| JPQ | Schmaus, Michael (1897-) |
| JPR | Scholz, Heinrich (1884-1956) |
| JPS | Schopenhauer, Arthur (1788-1860) |
| JPT | Schulze, Gottlob Ernst (1761-1833) |
| JPU | Schwarz, Friedrich Heinrich Christian (1776-1837) |
| JPW | Schweitzer, Albert (1875-1965) |
| JPX | Schwenckfeld, Kaspar von (1489-1561) |
| JPY | Semler, Johann Salomo (1725-1791) |
| JPZ | Shaftesbury, Anthony Ashley Cooper Earl of (1671-1713) |
| JQA | Simmel, Georg (1858-1918) |
| JQD | Smith, Adam (1723-1790) |
| JQE | Söderblom, Nathan (Lars Olof Jonathan Söderblom) (1866-1931) |
| JQF | Solger, Karl Wilhelm Ferdinand (1780-1819) |
| JQG | Solelev, Vladimir Sergeevich (1853-1900) |
| JQI | Spann, Othmar (1878-1950) |
| JQJ | Spearman, Charles Edward (1863-1945) |
| JQK | Spencer, Herbert (1820-1903) |
| JQL | Spener, Philipp Jacob (1635-1705) |
| JQM | Spengler, Oswald (1880-1936) |
| JQO | Spinoza, Baruch (Benedictus) (1632-1677) |
| JQP | Spitta, Friedrich (1852-1924) |
| JQQ | Spranger, Eduard (1882-1963) |
| JQR | Stalin, Iosif Vissarionovich (Iosif Vissarionovich Dzhugashvili) (1879-1953) |
| JQS | Steiner, Rudolf (1861-1925) |
| JQV | Stirner, Max (Johann Kaspar Schmidt) (1806-1856) |
| JQW | Stoy, Karl Volkmar (1815-1885) |
| JQX | Strauß, David Friedrich (1808-1874) |
| JQY | Suarez, Francisco (1548-1617) |
| JQZ | Sulzer, Johann Georg (1720-1779) |
| JRB | Taine, Hippolyte (1828-1893) |
| JRC | Teilhard de Chardin, Pierre (1881-1955) |
| JRD | Teresa de Jesús (Teresa de Avila) (1515-1582) |
| JRE | Thielicke, Helmut (1908-1986) |
| JRG | Thomasius, Christian (1655-1728) |
| JRI | Tillich, Paul (1886-1965) |
| JRJ | Tocqueville, Charles Alexis Henri Clérel (1805-1859) |
| JRK | Tönnies, Ferdinand (1855-1936) |
| JRM | Tolman, Edward Chase (1886-1959) |
| JRN | Topitsch, Ernst (1919-) |
| JRO | Trendelburg, Friedrich Adolf (1802-1872) |
| JRP | Trillhaas, Wolfgang (1903-) |
| JRQ | Troeltsch, Ernst (1865-1923) |
| JRS | Trotskii, Lev Davydovich (Lev Davydovich Bronstein) (1879-1940) |
| JRT | Vico, Giovanni Battista (Giambattista) (1668-1744) |
| JRU | Vieth, Gerhard Ulrich Anton (1763-1836) |
| JRV | Vischer, Friedrich Theodor von (1807-1887) |
| JRW | Vives, Juan Luis (1492-1540) |
| JRY | Voltaire (François Marie Arouet) (1694-1778) |
| JRZ | Watson, John Broadus (1878-1958) |
| JSA | Weber, Max (1864-1920) |
| JSB | Weigel, Erhard (1625-1699) |
| JSC | Weigel, Valentin (1533-1588) |
| JSE | Weisse, Christian Hermann (1801-1866) |
| JSF | Wellek, Albert (1904-1972) |
| JSG | Weniger, Erich (1894-1961) |
| JSH | Wesley, John (1703-1791) |
| JSI | Whitehead, Alfred North (1861-1947) |
| JSK | Wichern, Johann Hinrich (1808-1881) |
| JSL | Willmann, Otto (1839-1920) |
| JSM | Wimpheling (Wimpfeling), Jacob (1450-1528) |
| JSO | Windelband, Wilhelm (1848-1915) |
| JSQ | Wittgenstein, Ludwig (1889-1951) |
| JSR | Wolff, Christian (1679-1754) |
| JSS | Wundt, Wilhelm (1832-1920) |
| JST | Wyneken, Gustav (1875-1964) |
| JSV | Ziehen, Theodor (1862-1950) |
| JSW | Ziller, Tuiskon (1817-1882) |
| JSX | Zinzendorf, Nikolaus Ludwig Graf von (1700-1760) |
| JSZ | Zwingli, Ulrich (Huldrych) (1484-1531) |
