My name is Neve, but I pronounce it Neev or Niamh. My mother thought that it would be easier for a child to spell rather than Niamh, but we live in Canada now and I think about 5% of the time someone will say it right. I like my name but it's so irritating to correct people all the time.
My name is Niamh (which I've always loved!), but since I live in the States often times people have a hard time pronouncing it. For people who just can't get it, I tell them to call me Neve ("nev", like Neve Campbell, the actress) instead. I like Niamh better, but Neve is also nice.