Seven
Zeven is the Dutch word for the number seven. While rare as a given name, it follows the modern trend of using numbers or word-names as unique identifiers, often chosen for its numerical symbolism of completion or luck.
Less common today
Zeven isn't in the latest US Top 1000. It last peaked at #6,713 in 2008.
US births per 5-year period, 1990βpresent (SSA data).