Zi is a distinctive girls' name in England & Wales, ranking #1150 in 2010 with 28 recorded births. This places Zi in the top 16% of ranked UK girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 34 births ranking #937. In 2010, approximately 1 in every 11,466 girls born was named Zi. FALLING Recent data shows the name is currently falling.