I have 6 cats so I'll list them:

Moo meows but it's very quiet.

Maya Linn is quiet unless you ignore her then she gets loud.

Carly hardly ever meows unless I ask her where her mouse is, then it's the tiniest meow that you can barely hear.

Mollie Rose NEVER meows. I've never hear a peep outta her.

Eli meows only when he's hungry and boy is he loud!!!