| Lehman Kahn | |
| Pseudonym: | L. K. Amitaï |
| Birth Date: | 9 September 1827 |
| Birth Place: | Breisach, Baden, German Confederation |
| Death Place: | Brussels, Belgium |
| Language: | French |
Lehman Kahn (September 9, 1827 – February 4, 1915), also known by the pseudonym L. K. Amitaï, was a Belgian Jewish educationist and writer.
Lehman Kahn was born in Breisach, Baden, to Jewish parents Sara and David Kahn. He was educated at the Progymnasium of Breisach and at the polytechnic school and the pedagogic seminary of Carlsruhe.
After occupying the position of teacher in his native country and at the Jewish school of Hegenheim, Alsace, Kahn was called to Brussels as principal of the Jewish school there (1855). He also taught singing and conducted the choir at the city's synagogue services. In October, 1863, he founded L'Institut International Kahn, a school of commerce and modern languages.
Under the pseudonym L. K. Amitaï, he published essays on intermarriage, assimilation, antisemitism, and other topics of concern to the Jewish community.