God has heard; listener
Zamantha is a modern creative elaboration of Samantha, likely influenced by the trend of replacing initial letters with 'Z' for a more unique sound. It retains the core meaning of its predecessor, which is often interpreted as 'God has heard' or 'listener'.
Less common today
Zamantha isn't in the latest US Top 1000. It last peaked at #6,313 in 1998.
US births per 5-year period, 1990βpresent (SSA data).