Teresa is a female name.
Teresa is a Greek name. The name has its origin probably from the Greek island Santorin, which was once called Thera or Thira, or from the neighbouring island Therassia or Thirassia.
Teresa means “from the island Therassia”, but probably also “the huntress” (from Greek “theraein” = to hunt or “ther” = the huntable animal). Another meaning is “summer” (from Greek “theros”).