Isabeau is a distinctive girls' name in United States, ranking #5866 in 2014 with 22 recorded births. The name reached its all-time peak in 2013 with 25 births ranking #5381. Since 1996, the popularity has increased by 37.5%. In 2014, approximately 1 in every 81,179 girls born was named Isabeau. STABLE Recent data shows the name is currently stable.