The name Sixx is a unique and modern choice, often considered unisex but predominantly used for boys. It is pronounced as "siks" (/sɪks/). The name gained some popularity and recognition in the cultural sphere through Nikki Sixx, the famed bassist of the rock band Mötley Crüe, which has led to the variation "Nikki." Despite its association with a rock music icon, Sixx remains quite rare in usage. In 2023, it was given to only 5 newborns in the United States, ranking at 12,190. This rarity can make it an appealing choice for parents seeking a distinctive name that stands out while still being easy to pronounce and remember.