There are thousands, like Cascade, Bomber, Trojan.Cryect, some are new, but turn out to be a variation of an existing virus. Others are CIH, ILOVEYOU, ADWARE, MALWARE, Earthday, Jerusalem, and bounce.
The common computer viruses are Abraxas,Egg,Leprosy,Nutty mouse,Rabbit,Win Able,Gotcha,AIDS,AIDS11,Bounce,Eliza,Mazor,Caterpillar.Amoung these most common virus is Win Able.It disrupts the systems performance by displaying pop ups and it slows down the internet speed.
There are many viruses but the most common are: Trojans, adware, spyware, and malwear. These are mainly what you're computers virus protection will pick up. And within these categories the list goes on and on.
These are some of the very common computer virus names malware, adware, spyware, worms, trojans, rootkits, crimeware. Some of these viruses can be deleted by having an anti-virus or if not, you would have to reformat your computer.
Viruses can take many forms -- adware, spyware, worms, Trojan Horses, etc. AnnaKournikova, CAP, CIH, I Love You Worm, KAK, Resume, NYB, and Stone Empire Monkey are some common ones.