Hari is another name of Vishnu or God and appears as the 650th name in the Vishnu sahasranama.
According to Adi Sankara' s commentary on the Vishnu sahasranama, Hari means "One who destroys samsara, which is the entanglement in the cycle of birth and death, along with ignorance, its cause."
The word hari in Sanskrit refers to a colour, yellow, or fawn-coloured/khaki (it is the colour of the Sun and of Soma, see also Hare Krishna).
The Word Hari is also a common Indian name. It is also used in combination with other names, like Hariprasad, Harikrishna, etc
Reference
Cited from Sri Vishnu Sahasranama, commentary by Sri Sankaracharya, translated by Swami Tapasyananda, available at Sri Ramakrishna Math, Chennai.
