Gaius is a distinctive boys' name in United States, ranking #10151 in 1998 with 5 recorded births. This places Gaius in the bottom 10% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2014 with 42 births ranking #2824. In 1998, approximately 1 in every 382,264 boys born was named Gaius. RISING Recent data shows the name is currently rising.