Unknown; likely a modern variant of Pierre
Zierre is a rare modern American name. It is most likely a creative variation of the French name Pierre, which means 'rock' or 'stone', or influenced by the name Sierra. Its usage is contemporary and lacks a deep historical etymology of its own.
Less common today
Zierre isn't in the latest US Top 1000. It last peaked at #7,491 in 2012.
US births per 5-year period, 1990βpresent (SSA data).