- Holthouse, C. (Carsten), 1810-19011
- Hyrtl, Joseph, 1811-18941
- Jacobi, A. (Abraham), 1830-19191
- Jaeger1
- Jobert, Antoine Joseph, de Lamballe, 1799-18671
- Jones, Henry Bence, 1814-18731
- Juenken, Johann Christian, 1793-18751
- Kahn, Arnold (of Strasburg)1
- Koch, Robert, 1843-19101
- Kolliker, Albert, 1817-19051
- Lancet1
- Langenbeck, Bernhard von, 1810-18871
- Larrey, Felix Hippolyte, baron, 1808-18951
- Leitz, Ernst1
- Liebig, Justus, Freiherr von, 1803-18731
- Liebreich, Richard, 1830-19171
- Longet, F.-A. (Francois-Achille), 1811-18711
- Longmore, T. (Thomas), Sir, 1816-18951
- Louis, P. C. A. (Pierre Charles Alexandre), 1787-18721
- Lyall1