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Gaius meaning and name origin
Gaius \gaius\ as a boy's name is pronounced GIE-us. It is of Latin origin, and the meaning of Gaius is "happy". Probably the root of the word "gay", which used to mean "jolly". Also a biblical name, and the name of a Roman jurist in the second century. Caius is a variant that occurs in England.
Gaius has 7 variant forms: Cai, Caio, Kay, Kaye, Keye, Keyes and Keys.
For more information, see also the related name Jay.
Baby names that sound like Gaius are Gus and Guus.
View a list of the 4 names that reference Gaius.
Popularity of Gaius
Gaius is not a popular first name for men and an equally uncommon surname or last name for all people. (1990 U.S. Census)
Displayed below is the baby names popularity of the name Gaius for boys. (2010 statistics) Compare Gaius with its variant forms and related boy baby names.