Smargon Yakov (Jakow) (1877, Zelva, Volkovysk District, Grodno Province — ?) — rabbi, teacher.

Yakov Smargon was born in 1877 in Zelva (Grodno Province, present-day Belarus). In 1893, he studied in Brest-Litovsk (Brest). In 1899, he graduated from the Volozhin Yeshiva (Oshmyany District, Vilna Province).

He received rabbinical ordination from the rabbis of Brest-Litovsk and Dvinsk (Daugavpils).

He taught religious studies (Law of God) at a Jewish primary school in Dagda, and from 1900 served as rabbi in Dagda.