The Institute of Buddhist Studies is a Jodo Shinshu-affiliated seminary and graduate school, located in Berkeley, California.

It is the sole seminary for ministers serving temples in the United States through the Buddhist Churches of America, the U.S. mainland branch district of the Nishi Hongwanji sect of Japanese Buddhism.

Following the incarceration of Japanese Americans during World War II, nisei ("second generation") Buddhists in California desired to create an educational program for American-born ministers or priests.

With support of BCA Bishops Shinsho Hanayama and Kenryu Tsuji, the IBS incorporated with the State of California as a graduate school and seminary in 1969.

[2] Under the leadership of President David Matsumoto and Dean Scott Mitchell, IBS was granted accreditation by the Western Association of Schools and Colleges in 2020.