The streets near Hogwarts are never actually named, mostly because they don't exist and Hogwarts is supposed to be hidden. You're probably talking about the village next to Hogwarts, this is called Hogsmeade.
Moaning Myrtle
There is no scientific name for Harry Potter.
i can name 7: Harry Potter and the Sorcerers Stone (or Philosophers Stone if in Great Britain) Harry Potter and the Chaber of Secrets Harry Potter and the Prisoner of Azkaban Harry Potter and the Goblet of Fire Harry Potter and the Order of the Phoenix Harry Potter and the Half Blood Prince Harry Potter and the Deathly Hallows
older of the phoenix
The fourth film adaptation in the Harry Potter film series is called Harry Potter and the Goblet of Fire.