Śarvavarman

Śarvavarman was the founder of the Kātantra grammatical school, a non-Pāṇinian grammatical school in the Sanskrit grammatical tradition (vyākaraṇa).

Śaunaka

The Ṛgvedaprātiśākhya and the Atharvavedaprātiśākhya are ascribed to Śaunaka.

Śākalya

The Ṛgvedapadapāṭha is ascribed to Śākalya.

Śākaṭāyana

The Sāmavedaprātiśākhya (a.k.a. Ṛktantra) is ascribed to Śākaṭāyana or Audavraji.