Kaori Oinuma

 is a teen housemate in the first chapter of Pinoy Big Brother 8.

Kaori was among the second set of four potential female housemates introduced. Kaori became the second official male housemate after winning the second Housemate Selection challenge against 3 fellow female potential housemates.

Before entering, she and other female housemates were tasked to wear a black bonnet and bodysuit and must be able to let the male teen housemates to guess where they are from without speaking. Whoever failed will stay in their current form until Big Brother's notice.