Oni \o-ni\ as a girl's name is a variant of Ann (Hebrew), and the meaning of Oni is "He (God) has favored me".

The baby name Oni sounds like Onie, Una, Oona, Ina, Ena, Ana, Ania, Anni, Anh, Jeni, Yna and Joni. Other similar baby names are Nani, Toni, Onita, Oria, Ora, Dani, Deni, Kani, Keni, Lani, Loni, Noni, Oba, Oda, Ola, Olia, Oma, Onida, Orna, Rani, Roni, Tani, Xeni and Zuni.