Steffani is of Italian origin and means "crown". It is a variant of the male name Stefano, which is derived from the Latin word " Stephens", meaning "crowned". In Italy, Steffani is often used as a feminine name but can also be given to boys. The name gained some popularity in English-speaking countries during the 20th century. It has been used by several notable individuals, most famously the Italian composer Antonio Caldara, who was born Giovanni Lorenzo Calì but changed his name to Antonio Steffani around 1693. Today, Steffani remains a relatively uncommon name but is often chosen for its unique sound and meaning.
The name Steffani saw a significant increase in popularity from the late 1950s to the mid-1970s, with peaks of 32 births in 1971 and 43 births in 1988. After 1990, there was a marked decline in its usage, with fewer than 20 births per year since then. The name has seen a steady decrease in popularity over time, with only 6 or 7 births recorded each year from 2004 onwards.