Janessa is a distinctive girls' name in England & Wales, ranking #3333 in 2025 with 7 recorded births. The name reached its all-time peak in 2022 with 11 births ranking #2325. Since 1996, the popularity has increased by 133.3%. In 2025, approximately 1 in every 36,183 girls born was named Janessa. RISING Recent data shows the name is currently rising.