Pierette \pi(e)-rette, pier(et)-te\ as a girl's name is of French origin. Feminine diminutive of Pierre, from Peter (Greek) "rock".
Pierette has 3 variant forms: Piera, Pierina and Pietra.
For more information, see also the related name Petra.
Baby names that sound like Pierette are Pierrette, Brette and Berett.