Ihara (written: or ) is a Japanese surname. Notable people with the surname include:
*, Japanese baseball player and manager
*, Japanese politician
*, Japanese diplomat
*, Japanese rower
*, Japanese racing driver
*, Japanese footballer
*
Michio Ihara (born 1928), Japanese sculptor
*, Japanese poet and writer
*, Japanese actor
* Japanese footballer
*, Japanese mathematician
See also
*
Ihara District, Shizuoka was a rural district located in central Shizuoka Prefecture, Japan.
As of the end of 2008 (the last data available before its dissolution), the district had an estimated population of 26,859 and a population density of 497.85 persons per km2. It ...
, a former district of Shizuoka Prefecture, Japan
*
Ihara zeta function
*
Ihara's lemma
{{surname
Japanese-language surnames