Kocher was also a famous and loved Teacher. During nearly 100 semesters he taught his knowledge to about 10 000 students of the University of Bern. He was able to inspire students and taught them to think clearly and logically. Specifically, Kocher also taught a generation of Jewish-Russian students who could not study in Russia. This association with Russia has also led the Russian geographic society to name a volcano after him (in the area of Ujun-Choldongi). Among his many local and international students were Carl Arend (Bern), Oscar Bernhard (St. Moritz), Andrea Crotti (Ohio), Gustave Dardel (Bern), Carl Garré (Bonn), Gottlieb and Max Feurer (St. Gallen), Anton Fonio (Langnau), Walter Gröbly (Arbon), Carl Kaufmann (Zürich), Albert Kocher (Bern), Joseph Kopp (Luzern), Ernst Kummer (Geneva), Otto Lanz (Amsterdam), Edmond Lardy (Geneva) Jakob Lauper (Interlaken), Albert Lüthi (Thun), Hermann Matti (Bern), Charles Pettavel (Neuenburg), Paul Pfähler (Olten), Fritz de Quervain (La Chaux de Fonds / Basel / Bern), August Rickli (Langenthal), Ernst Rieben (Interlaken), August Rollier (Leysin), César Roux (Lausanne), Karl Schuler (Rorschach), Fritz Steinmann (Bern), Albert Vogel (Luzern), Hans Wildbolz (Bern) as well as the American neurosurgeon Harvey Cushing. Other notable students of his include Hayazo Ito (1865 - 1929) and S. Berezowsky which also spread his techniques in their respective home-countries (Japan and Russia).