What is the correct pronunciation of the name Ceri?

It is pronounced KE-ri. You can find the source here.

Yes, it would be wrong to pronounce it as Seri.

Think Catherine or Callum: you say the C like K.

Ceri is my name and as soon as I leave Wales people have trouble pronouncing it. It’s pronounced the same as Kerry; it's just the Welsh Celtic spelling.

Names are pronounced as the owner wishes them to be; imagine how you would feel if somebody told you you were pronouncing your name 'wrongly'. Ceri is of Welsh origin, and pronounced with a hard c in Welsh, so most Ceris use that pronunciation. But there is nothing to prevent a mother seeing the name in print and giving it to her daughter, pronounced with a soft c.

My name is Ceri and I hate it when people pronounce my name with an S. I know that C and be said with an S sound, but it simple really. C for Cat. You never hear any one going Satherine, instead of Catherine. So why is it any different with Ceri?