In Vedic scriptures, the Ultimate God—the Supreme Personality of Godhead—is Śrī Krishna.
🕉️ Who is the Ultimate God according to the Vedas?
The Bhagavad-gītā, spoken by Krishna Himself, clearly declares:
"ahaṁ sarvasya prabhavo mattaḥ sarvaṁ pravartate"
“I am the source of all spiritual and material worlds. Everything emanates from Me.”
— Bhagavad-gītā 10.8
And:
"mattah parataram nānyat kiñcid asti dhanañ-jaya"
“There is no truth superior to Me.”
— Bhagavad-gītā 7.7
🟣 What about Vishnu, Shiva, Brahma?
Vishnu is Krishna's expansion who performs the role of the maintainer of the universe.
Shiva is a guna-avatar (in charge of destruction) and is described as greatest devotee of Lord Krishna (Vaishnavanam yatha shambhu).
Brahma is the secondary creator, empowered by Krishna.
In Brahma-saṁhitā (5.1):
"īśvaraḥ paramaḥ kṛṣṇaḥ sac-cid-ānanda-vigrahaḥ
anādir ādir govindaḥ sarva-kāraṇa-kāraṇam"
"Krishna, who is known as Govinda, is the Supreme Godhead.
He has an eternal blissful spiritual body.
He is the origin of all. He has no origin and He is the cause of all causes."
🔱 So, Who is the Ultimate God?
✅ Śrī Krishna is the Supreme Personality of Godhead (পরমেশ্বর), the ultimate source of all incarnations (avatars), including Vishnu, Rama, Narasimha, etc.