Well there's so much to say on this topic. I mean yes and no. Yes because there are people who think they're vampires, yes because there are pale people who drink blood (sometimes fake blood, sometimes animal blood, sometimes human blood), and yes because there are vampire bats that drink the blood of small rodants. But really, the answer is no. I mean there are not people that can transform into bats who naturally have sharp fangs and can fly and turn to ash in sunlight. So basically it all depends on how you define a vampire.