See the name of the cat?
Anyway, It depends on how you listen to it.
Eg: If you listen and think "nyan" while listening, it will sound like "nyan". But the weird thing is, it sounds like "meow" if you think "meow" while listening. Try it.

So it might sound like "Nyan", "Nya", "Nyow", or "Meow" to you, but it won't to other people.

I guess it's obvious that it's NYAN not MEOW.

Some people think that it says MEOW.

MEOW LOOK IT GOES MEOW MEOW MEOW MEOW

I NO ITS NOT GOOD EXPLAININ

Dude! cmon! NYAN

@SHINE_SHINE
If you listen and think "nyan" while listening, it will sound like "nyan".
But the weird thing is, it sounds like "meow" if you think "meow" while listening.

Actually, it says Nya >.
Nya nya nya nya nya nya nya!!

^It depends on how you listen to it (^^ see explaination above). So it might sound like "Nya" to you.

it says nyow

^Did no one see my explaination?

"It depends on how you listen to it.
Eg: If you listen and think "nyan" while listening, it will sound like "nyan". But the weird thing is, it sounds like "meow" if you think "meow" while listening. Try it.

So it might sound like "Nyan", "Nya", "Nyow", or "Meow" to you, but it won't to other people.

if you slow it down it will sound like meow link

I added some suggestions by other people.

@TheQueen That's because it's low-pitched. If it was high-pitched, then it would sound like "nyan". (Amd who says it does't sound like "Nyan" anyway? XD )

Sounds like he says:
Ni ni ni ni ni ni ni ni nom nom ni ni ni nom nom ni ni ni
Not necessarily like that, but ni ni ni ni nom nonetheless

NHAH,ALL THE SAME!Nyan is the same than meow,but japanese!

HE SAYS : nyan nayna nyan mew mew mew mew

I always hear 'meow" for some reason.

SHE SAYS NYAN NYAN NYAN