Over the past 110 years, 47 boys and 36 252 girls have been named Nikki. The name Nikki ranks 7146th in the United States among the most common names for boys. For the first time more than ten times newborns were named Nikki in 1985. The peak of popularity of the name Nikki came in the 1980s and 1990s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.