The name Keshav is of Hindu origin and is believed to have originated in ancient India. It is a Sanskrit name derived from the words "Kesha," meaning hair, and "Va," meaning having or possessing. Thus, the name Keshav can be interpreted as "one with beautiful hair" or "long-haired one."

The name Keshav has deep roots in Hindu mythology and is one of the many names associated with Lord Vishnu, the preserver and protector deity in the Hindu trinity. In the sacred Hindu text, the Bhagavad Gita, Lord Krishna, an incarnation of Lord Vishnu, is referred to as Keshav.

One of the earliest recorded instances of the name Keshav can be found in the ancient Hindu epic, the Mahabharata, which is dated between the 8th and 9th centuries BCE. In this epic, Keshav is mentioned as one of the many names of Lord Krishna.

Throughout history, there have been several notable figures who bore the name Keshav. One of the most famous was Keshav Baliram Hedgewar (1889-1940), the founder of the Rashtriya Swayamsevak Sangh (RSS), a prominent Hindu nationalist organization in India.

Another notable figure was Keshav Prasad Mishra (1918-2006), an Indian politician and freedom fighter who served as the Chief Minister of Uttar Pradesh, India's most populous state, from 1962 to 1963.

In the realm of literature, Keshav Pandurang Sathe (1919-2001) was a renowned Marathi writer, poet, and playwright who made significant contributions to Marathi literature. He was awarded the prestigious Padma Bhushan, India's third-highest civilian honor, in 1998.

Keshav Krishnarao Bhole (1914-1990) was an Indian mathematician and statistician who made notable contributions to the field of probability theory and stochastic processes.

Lastly, Keshav Prasad Chandra (1820-1901) was a renowned Indian historian and writer who authored several books on Indian history and culture, including "The Modern History of India" and "The Travels of a Hindu."

While the name Keshav is primarily associated with Hinduism, it has transcended religious boundaries and is used by people of various faiths and backgrounds, particularly in India and other parts of South Asia.