Elazar Fleckeles (August 26, 1754 in Prague – April 27, 1826) was a Bohemian rabbi and author.

Later he accepted the office of rabbi of the beth midrash founded by Joachim Edler von Popper and Israel Fränkel.

Fleckeles was renowned for his scholarship and oratorical gifts, and for his skill in worldly affairs.

[1][2][3] In a fashion similar to that of his mentor Landau, Fleckeles viewed the threat that Sabbatianism posed to tradition, in particular to the centrality of Talmud and its study, as emanating from excesses of mysticism.

Hence even legitimate Kabbalah and its derived practices, such as prefacing mystical intentional formulae to the recitation of blessings, should, he believed, play no public role.