From google: The origin of their name is quite clever; “Evo” is short for “Evolution,” and the number 9 in Thai is pronounced “gao,” which is pronounced the same as the Thai word ก้าว (Gao), which means “to advance” or “move forward,” thus “Evo Nine” = “The evolution of moving forward.” They kept the English pronunciation of “Nine,” as it is pronounced similar to the Thai word นาย (nai) which means “Mister” or “male,” which also implies that the group is the evolution of boybands