Isabeau is a distinctive girls' name in United States, ranking #11464 in 2024 with 8 recorded births. The name reached its all-time peak in 2013 with 25 births ranking #5381. Since 1996, the popularity has decreased by 50.0%. In 2024, approximately 1 in every 201,649 girls born was named Isabeau. STABLE Recent data shows the name is currently stable.