Vishnu is one of the principal Hindu deities, worshipped as the protector and preserver of the world and restorer of dharma. Vishnu is a form of God, in Hinduism. He is known chiefly through his avatars, particularly Rama, Krishna and Buddha.
The preserver god of the Trinity has four hands. The first holds a conch shell (sankha) indicating spread of the divine sound "Om"; one holds a discus (chakra), a reminder of the wheel of time, and to lead a good life; one holds a lotus (Padma) which is an example of glorious existence and the fourth hands holds a mace (gada) indicating the power and the punishing capacity of the Lord if discipline in life is ignored. His vehicle is the swift-flying bird Garuda which can spread the Vedic knowledge with great courage. The dark color of the Lord represents the passive and formless ether, a great quality for a pervading god. He rests on the bed of the powerful, coiled serpent, Seshanag who represents the sleeping universe. Lord Vishnu is also known as Hari, the remover. Lord Vishnu's consort is Goddess Lakshmi, the Goddess of Wealth .
NAME OF VISHNU
Adidev
The Lord Of The Lords
Aditya
The Son Of Aditi
Aparajeet
The Lord Who Cannot Be Defeated
Anandsagar
Compassionate Lord
Balgopal
The Child Krishna, The All Attractive
Bali
The Lord Of Strength
Chaturbhuj
Four-Armed Lord
Danavendra
Granter of Boons
Dayalu
Repositiory of compassion
Dayanidhi
The Compassionate Lord
Dharmadhyaksha
The Lord Of Dharma
Gopal
One Who Plays With The Cowherds, The Gopas
Govinda
One Who Pleases The Cows, The Land And The Entire Nature
Hari
The Lord Of Nature
Hrishikesh
The Lord Of All Senses
Jagannath
Lord Of The Universe
Janardhana
One Who Bestows Boons On One And All
Jyotiraaditya
The Resplendence Of The Sun
Kamalnath
The Lord Of Goddess Lakshmi
Kamalnayan
The Lord With Lotus Shaped Eyes
Keshava
One Who Has Long, Black Matted Locks
Krishna
Dark-Complexioned Lord
Lokadhyaksha
Lord Of All The Three Lokas
Madhava
Knowledge Filled God
Madhusudan
Slayer Of Demon Madhu
Manmohan
All Pleasing Lord
Manohar
Beautiful Lord
Mayur
The Lord Who Has A Peacock Feathered-Crest
Murali
The Flute Playing Lord
Murlidhar
One Who Holds The Flute
Nandgopala
The Son Of Nand
Narayana
The Refuge Of Everyone
Niranjana
The Unblemished Lord
Padmahasta
One Who Has Hands Like Lotus
Padmanabha
The Lord Who Has A Lotus Shaped Navel
Paramatma
Lord Of All Beings
Parthasarthi
Charioteer Of Partha - Arjuna
Purshottam
The Supreme Soul
Shyam
Dark-Complexioned Lord
Shyamsundara
Lord Of The Beautiful Evenings
Sudarshana
Handsome Lord
Upendra
Brother Of Indra
Vaikunthanatha
Lord Of Vaikuntha
Vasudev
All Prevailing Lord
Vishnu
All Prevailing Lord
Vishwatma
Soul Of The Universe
Yadavendra
King Of The Yadav Clan
Yogi
The Supreme Master
Yoginampati
Lord Of The Yogis
http://en.wikipedia.org/wiki/Vishnu