It doesn't mean anything in Japanese. I know because Omi is my name, and I've thoroughly looked into it ;)
ALL or EVERY
it means: samoan/mexican((:
In Korean, "omi" (엄이) means aunt on your mother's side. It is the term used to address and refer to your mother's sister.
Omayra Omi Torres goes by Omi.
Koji Omi was born in 1932.
Toshinori Omi is 177 cm.
Omi Vaidya is 164 cm.
Yukitaka Omi was born on 1952-12-15.
Takayuki Omi was born on 1982-10-06.
Omi Vaidya was born on 1982-01-10.
Omi Sato was born on 1975-12-22.
Omi Gurung was born on 1986-02-24.