Isaiah Meïr Kahana Shapira (Hebrew: ישעיהו מאיר כהנא שפירא; 28 July 1828 – 9 January 1887) was a Polish-German rabbi and author.
He is said to have been familiar at the age of thirteen with all the sedarim of both Talmudim and with a part of the poskim.
[1] About 1845 he studied philosophy, mathematics, and astronomy, and as early as 1848 he wrote on ethics for different journals.
Shapira engaged in business as a merchant; but a fire destroyed all his belongings, and he was compelled to accept the rabbinate of Czortkow.
Shapira interposing to make peace, the brunt of the dissension was turned against him and his inclination to secular education; and he was for a time even deprived of his livelihood.