Iyyun: The Jerusalem Journal of Philosophy ("Iyyun" literally means "inquiry" or "study") is published by the S. H. Bergman Center for Philosophical Studies of the Hebrew University of Jerusalem. It was established in 1945 as a Hebrew philosophical quarterly by Martin Buber, S. H. Bergman, and Julius Guttmann. As of volume 39 (1990), Iyyun appears four times a year: January and July in English, April and October in Hebrew. Each English issue carries abstracts of the articles in the previous Hebrew issue.

Iyyun

Discipline	Philosophy
Language	English, Hebrew
Edited by	Hagi Kenaan, Eva Shorr
Publication details
History	1945–present
Publisher	S. H. Bergman Center for Philosophical Studies of the Hebrew University of Jerusalem (Israel)
Frequency	Biannual
Standard abbreviations ISO 4 (alt) · Bluebook (alt1 · alt2) NLM (alt) · MathSciNet (alt )
ISO 4	Iyyun
Indexing CODEN (alt · alt2) · JSTOR (alt) · LCCN (alt) MIAR · NLM (alt) · Scopus
ISSN	0021-3306
LCCN	he65000235
OCLC no.	242373817
Links
Journal homepage

Volume 1, no. 1 was published in October 1945, and it included papers by Ernst Cassirer, Felix Weltsch, Fritz Heinemann, Nathan Rotenstreich, and others. A double issue (vol. 1, nos. 2-3) followed in November 1946, and the fourth one appeared in July 1949, that is, from the end of World War II and through the 1948 Arab–Israeli War. Ever since January 1951 (vol. 2, no. 1), Iyyun has appeared regularly.

The name Iyyun derives from the traditional Rabbinic-term for in depth study; see Yeshiva § Talmud study.