The Social Security Administration keeps track of the name of every child born in the United States, so we know which names American parents like to use for their kids — and how those preferences and popularity change over time. Those numbers can help you differentiate between truly unique girl names and those that thousands of other parents also thought were one-of-a-kind ideas. Think you’re the only one considering Harper? Pffft. It’s been one of the most popular baby girl names since 2014. So, to help you out, we’ve sorted through decades’ worth of baby names to present this list of unique baby girl names. Take a look and choose wisely.