K
- K3 surface – Ernst Kummer, Erich Kähler, Kunihiko Kodaira
- Kähler differential, manifold, metric – Erich Kähler
- Kakutani's problem – see Collatz conjecture, above
- Kármán vortex street – Theodore von Kármán
- Karnaugh map (a.k.a. Karnaugh-Veitch map, Veitch diagram) – Maurice Karnaugh (and Edward W. Veitch)
- Karush–Kuhn–Tucker conditions (a.k.a. Kuhn–Tucker conditions) – William Karush, Harold W. Kuhn and Albert W. Tucker
- Kasha's rule – Michael Kasha
- Kater's pendulum – Captain Henry Kater
- Kaye effect – Alan Kaye
- Keeling curve – Charles David Keeling
- Kelvin–Joule effect – William Thomson, 1st Baron Kelvin
- Kelvin–Voigt material, model – Woldemar Voigt and William Thomson, 1st Baron Kelvin
- Kennelly–Heaviside layer – Arthur Edwin Kennelly and Oliver Heaviside
- Kepler's laws of planetary motion – Johannes Kepler
- Kerr effect – John Kerr
- Kirkendall effect – Ernest Kirkendall
- Kleene star (a.k.a. Kleene operator, Kleene closure) – Stephen Kleene
- Klein–Gordon equation – Oskar Klein and Walter Gordon
- Klein–Nishina effect – Oskar Klein and Yoshio Nishina
- Knudsen cell, number – Martin Hans Christian Knudsen
- Kodaira dimension, embedding theorem, vanishing theorem – Kunihiko Kodaira
- Koenigs–Knorr reaction – Wilhelm Koenigs and Edward Knorr
- Kohn effect – Walter Kohn
- Kohn–Sham equations – Walter Kohn and Lu Jeu Sham
- Kohonen network – Teuvo Kohonen
- Kolakoski sequence – William Kolakoski
- Kolbe electrolysis – Adolph Wilhelm Hermann Kolbe
- Kolbe–Schmitt reaction – Adolph Wilhelm Hermann Kolbe and Rudolf Schmitt
- Kondo effect – Jun Kondo
- Kornblum oxidation – Nathan Kornblum
- Kornblum–DeLaMare rearrangement – Nathan Kornblum and Harold E. DeLaMare
- Kossel effect – Walther Kossel
- Kosterlitz–Thouless transition – see Berezinsky–Kosterlitz–Thouless transition, above
- Kozai effect – Yoshihide Kozai
- Krebs cycle – Hans Adolf Krebs
- Kratzer potential – Adolf Kratzer
- Kronecker delta – Leopold Kronecker
- Kuhn–Tucker conditions – see Karush–Kuhn–Tucker conditions, above
- Kuiper Belt – Gerard Kuiper
- Kummer's function, Kummer surface – Ernst Kummer
- Kuramoto model – Yoshiki Kuramoto
Read more about this topic: Scientific Phenomena Named After People