Updated January 4, 2024 Share: Table of contents Family name origins & meanings Japanese : ‘placid well’; a habitational name from Hiraimura in Settsu (now part of Hyōgo prefecture). Families bearing this name descend variously from the Fujiwara, Taira, Minamoto, and other clans. The name is also found in the Ryūkyū Islands. Appears on 500+ Japanese Last Names and Meanings