Ibini was born in Sydney to Nigerian migrant parents Ibi and Juliana.

[1] She is the younger sister of Australia national soccer team player Bernie Ibini-Isei who last played for Lion City Sailors.

She has previously stated her eldest brother Bernie is the reason she started playing football.

[2] She attended Westfields Sports High School along with fellow Matildas teammate Ellie Carpenter.

Ibini was a part of the Football NSW Institute program and also represented Illawarra United Stingrays in the Women's National Premier League.