Vishnu is a Sanskrit name meaning "the all-pervading one," borne by the Hindu preserver deity.
Vishnu is one of the most ancient and theologically profound names in the Hindu tradition — and by extension, one of the oldest living personal names in human history. Derived from the Sanskrit root viś, meaning to pervade or to enter, Vishnu is typically translated as the All-Pervading One, the deity whose essence saturates every corner of existence. As one of the principal gods of the Hindu Trimurti — alongside Brahma the Creator and Shiva the Destroyer — Vishnu is the Preserver, the cosmic force that sustains dharma and periodically descends to earth in avatars (incarnations) to restore balance when it is threatened.
His ten principal avatars include Rama, Krishna, and the Buddha, making Vishnu's theological reach extraordinary. The Rigveda, among the oldest religious texts in the world (composed roughly between 1500 and 1200 BCE), already invokes Vishnu in his cosmic strides across the universe. Over the following three millennia, the Vaishnava tradition grew into one of the world's great religious movements, spreading from the Indian subcontinent through Southeast Asia, where magnificent temple complexes like Angkor Wat in Cambodia were built in Vishnu's honor.
The name was borne by scholars, kings, and poets across this vast geography. As a personal name, Vishnu is used primarily in Hindu families across India and the diaspora. It carries enormous reverence — parents who choose it are placing their child under the explicit protection and identity of the Preserver himself.
In parts of South India, Kerala especially, the name remains common and beloved. In the diaspora, it stands as an act of cultural continuity, a name that keeps ancient India present in new geographies.