Dattatreya (Sanskrit: दत्तात्रेय, Dattātreya) or Sri Datta (Tamil: ஸ்ரீ தத்தாத்ரேயர், Malayalam: ശ്രീ ദത്താത്രേയന്, Kannada: ಶ್ರೀ ದತ್ತಾತ್ರೇಯ ಸ್ವಾಮಿ , Telugu: శ్రీ దత్తాత్రేయ స్వామి, Marathi: श्री दत्तात्रेय, Gujarati: શ્રી દત્તાત્રેય, Hindi: श्री दत्तात्रेय, Sinhala: ශ්රී දත්තාත්රේය ) is a Hindu deity encompassing the trinity of Brahma , Vishnu and Shiva , collectively known as Trimurti. The name Dattatreya can be divided into two words - "Datta" (meaning given) and "Atreya" referring to the sage Atri, his physical father.
- Various Hindu sects worship him differently. In the Nath tradition, Dattatreya is recognized as an Avatar or incarnation of Shiva and as the Adi-Guru (First Teacher) of the Adinath Sampradaya of the Nathas. Although Dattatreya was at first a "Lord of Yoga" exhibiting distinctly Tantric traits, he was adapted and assimilated into the more devotional (Sanskrit: bhakti) Vaishnavite cults; while still worshiped by millions of Hindus, he is approached more as a benevolent god than as a teacher of the highest essence of Indian thought. However, spiritual seekers pray to this Supreme Teacher for knowledge of the Absolute Truth. Dattatreya is credited as the author of the Tripura Rahasya given to Parasurama, a treatise on Advaita Vedanta. He is specially worshipped on his birthday, Datta Jayanti.