The name Brea is a girl's name . Brea and discussed in our forums with posts like "Sibset makeover game! Girls version".
From the experts:
Brea is another spin on the increasingly-popular Bria, another entry in the stylish Mia-Leah-Gia sisterhood. While Bria is on the charts with an arrow toward the top, Brea is used more quietly, maybe because the spelling makes the pronunciation less clear. Is it bree-a or bray (answer: bree-a).