Amvarīṣa (Amvarisha) is one of the mantradraṣṭā (mantradrasta; seer of holy hymns) ṛṣi(s) (rishi; sage) of Ṛgveda (Rigveda). Amvarīṣa and his five brothers were sons of Vṛṣāgīra (Vrishagira). In Ṛgveda, they found to be chanting hymns to Indra —
etatttya indra vṛṣṇa ukthaṃ vārṣāgirā abhi gṛṇanti rādhaḥ
ṛjrāśvaḥ praṣṭibhiramvarīṣaḥ sahadevo bhayamānaḥ surādhāḥ.
In Purāṇa(s) (Purana; Mythological Scripture), especially in Vāyupurāṇa (Vayupurana) and Brahmāṇḍapurāṇa (Brahmandapurana), thirty three mantradraṣṭā sages are referred to as Āṅgirasa (Angirasa), or belonging to the order of sage Aṅgirā (Angira). The name of Amvarīṣa has been mentioned along with Purukutsa, Māndhātā (Mandhata), Yuvanāśva (Yuvanaswa), Trasadasyu and others. We may also find them later, in the list of kings mentioned as Rājarṣi(s), belonging to Ikṣvākuvaṃśa (Ikshwakuvamsa; the Ikshwaku dynasty) (see Amvarīṣa – 2). Vāyupurāṇa (Vayupurana) has clearly mentioned that Rājarṣi(s) (Rajarshi; a king with the attributes of a sage) like Amvarīṣa were Kṣatropeta (kshatropeta) Brāhmaṇa (Brahmana), that is, they were born as Kṣatriyas (Kshatriya) and later attained the status of Brāhmaṇa(s) —
ete kṣatraprasūtā vai punaścāṅgirasaḥ smṛtāḥ
rathītarāṇāṃ pravarāḥ kṣatropetā dvijātayaḥ.