There are 18 mathematicians whose last name begin with HIRA.

Hirachi, Kengo Osaka University 1994
Hiraga, Kaoru Kyoto University 2004
Hiraguchi, Ryoji Stanford University 2008
Hirai, Takeshi Kyoto University 1969
Hirai, Yoichi University of Tokyo 2013
Hiraiwa, Ken Massachusetts Institute of Technology 2005
Hiramatsu, Naoya Okayama University 2011
Hirani, Anil California Institute of Technology 2003
Hirano, Hikaru Kyushu University 2023
Hirano, Katsuhiro University of Tokyo 1997
Hirano, Keisuke Harvard University 1998
Hirano, Miki University of Tokyo 1998
Hirano, Yuichi University of Tokyo 2014
Hirasaka, Mitsugu Kyushu University 1998
Hirasawa, Yoshikazu University of Tokyo 1962
Hirata, Christopher Princeton University 2005
Hirata, Daisuke Harvard University 2015
Hirata, Noriko Université Pierre-et-Marie-Curie - Paris VI 1989