Aaron Jekel ben Samuel Schor of Frankfurt (Hebrew: אהרון יקל בן שמואל שור מפרנקפורט; c. 1620 – 1701) also known as the Beis Aharon of Frankfurt was a 17th-century Jewish-German rabbi and Hebrew author, best known for his work "Beis Aharon", which is considered to be amongst the most important concordances of the Bible.
In his early years, Aaron moved to Frankfurt an der Oder, where he married Suessele Horowitz (d. 1688) who was a great-granddaughter of Yom-Tov Lipmann Heller.
In the introduction, he states that he spent ten long years writing the work, with the help of several other scholars who lived with him for this purpose.
Beis Aharon was received with the approval of the greatest rabbinic authorities of the time, fifteen of whom give their approbation which prefaces the introduction of the work.
At the request of his wife, Aaron translated into Yiddish the Midrash Petirat Moshe, published in 1693 in Frankfurt on der Oder.