Question

How can I block a person in viber?

Answer 1

Go to more option at the bottom right corner of your screen. click settings, then privacy, and you will see a block list then add the persons account that you want to block.

Answer 2

go to setting

select privacy option

you can  find block list in it

click on block list

select the contacts to block by clicking "+"

and then click "right" symbol to conform the block list