Modern American creation, possibly related to Aisha or Nisha
Nieshia is a modern American name likely formed as a creative variation of names like Aisha, meaning 'alive' or 'well-to-one', or the Sanskrit Nisha, meaning 'night'. It emerged in the late 20th century as part of a trend of inventing unique names using the '-ia' suffix. Due to its rare usage, it does not have a singular established etymology.
Less common today
Nieshia isn't in the latest US Top 1000. It last peaked at #7,683 in 1990.
US births per 5-year period, 1990βpresent (SSA data).