E
- Early effect – James M. Early
- Eddington limit – Arthur Eddington
- Edgeworth–Bowley box – Francis Ysidro Edgeworth and Arthur Lyon Bowley
- Edison effect – Thomas Edison
- Edman degradation – Pehr Victor Edman
- Edward–Lemieux effect (a.k.a. Anomeric effect) – John Thomas Edward and Raymond U. Lemieux
- Eglinton reaction – Geoffrey Eglinton
- Ehrenfest paradox – Paul Ehrenfest
- Eimer's organ – Gustav Heinrich Theodor Eimer
- Einstein Cross, effect, radius, ring, shift – Albert Einstein
- Einstein–de Haas effect – Albert Einstein and Wander Johannes de Haas
- Einstein–Podolsky–Rosen paradox (a.k.a. EPR paradox, Einstein–Podolsky–Rosen–Bohm paradox) – Albert Einstein, Boris Podolsky, Nathan Rosen (and David Bohm)
- Ekman layer – Walfrid Ekman
- Elbs reaction – Karl Elbs
- Elliott–Halberstam conjecture – Peter D. T. A. Elliott and Heini Halberstam
- Elman network – Jeff Elman
- Elsasser number – Walter M. Elsasser
- Engel curve – Ernst Engel
- Epimenides paradox – Epimenides of Knossos
- Erlenmeyer flask, rule, synthesis – Richard August Carl Emil Erlenmeyer
- Eschenmoser fragmentation – Albert Eschenmoser
- Eschweiler–Clarke reaction – Wilhelm Eschweiler and Hans Thacher Clarke
- Eshelby's inclusion – John D. Eshelby
- Étard reaction – Alexandre Léon Étard
- Ettinghausen effect – Albert von Ettinghausen
- Euler this and that (numerous entries) – Leonhard Euler
- Evershed effect – John Evershed
Read more about this topic: Scientific Phenomena Named After People