Sybill Trelawney, the Divination professor at Hogwarts, prophesied that a child would be born who would threaten the Dark Lord. "He would have power the Dark Lord knows not." Because "neither can live while the other survives," it was inevitable that Voldemort would go in search of someone born with the description given (Born to those who have thrice defied him, born as the seventh month dies...)in order to kill him and preserve his own life.
Voldemort is looking out for himself. If he had not been told what the prophecy revealed, Harry would be living a very normal life right now. Severus was an ass back then, though, and so now Voldemort feels that he must kill Harry before Harry kills him. It's quite logical actually.
posted over a year ago
the only reason why. He wants to get back at him for making him loose almost all of his power
Voldemort wants to kill Harry because Professor Trelawney predicted that Harry(or a young person whose parents defeated Voldemort 3 times and whose birthday comes at the end of July) would defeat him in the future by killing all his horcruxes then finally killing him
lord vol-d-e-r-mort wants to kill harry because a prophesy was made that said that harry is the only one that can destroy you-know-who.plus,harry keeps on escaping from him and that is pissing him off!
FIRST OF ALL IT'S NOT "VOLDIMORT" AND "WHANT".
IT'S "VOLDEMORT" AND "WANT".
:-> Because in the prophecy it said
"neither can live while the other survives"
meaning that one must kill the other, or they will be killed themself.