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Last name origins & meanings:

  1. Indian (northern states): Hindu, Jain, and Parsi name found among several mercantile communities, from sẹth ‘merchant’, ‘banker’ in Hindi and neighboring languages (from Sanskrit šrẹṣthī, a term denoting the head of a mercantile or other guild). The Khatris of the Panjab have a clan called Seth.
  2. Scottish and Irish: reduced Anglicized form of Gaelic Mac Sithigh or Ó Síthigh (see Sheehy).

This name appears in the following lists: Biblical Names, Dancers