Blocking someone on Viber stops them from calling, messaging, or seeing your status
When you block a contact on Viber, that person can no longer reach you through the app. They cannot send you messages, make calls, or see whether you are online. If they try to message you, they will see a delivery status that never changes — the message appears sent on their end, but it never arrives in your inbox. Blocked contacts also cannot see your profile picture, status updates, or last seen time.
The block is one-way: you will not see their messages or calls, but they can still see your public information if they visit your profile directly (unless you have also set your profile to private). Viber does not notify the blocked person that you have blocked them, though they may figure it out when their messages stop delivering.
Key Takeaways
- Blocking on Viber takes two taps and works when ready across all devices where you use the app.
- A blocked person cannot message or call you, but they will not receive a notification that you blocked them.
- You can unblock someone at any time by finding them in your blocked list and tapping unblock.
- Blocking is different from muting: a muted contact can still reach you, but their notifications will not alert you.
- Viber keeps a separate blocked list so you can see who you have blocked and reverse it if you change your mind.
How to block someone from your chat list
Open Viber and find the person you want to block in your chat list. Press and hold their name until a menu appears with options. Tap Block (on Android) or swipe left and tap the block icon (on iPhone). Confirm the action when Viber asks you to verify.
The chat will remain in your list but grayed out, and you will no longer receive notifications from that contact. If you want to remove the chat from your list entirely, you can delete it separately — blocking and deleting are two different actions.
How to block someone from their profile
If you want to block someone but do not have an active chat with them, you can block them through their profile. Open Viber, go to Contacts or search for the person's name. Tap their profile to open it, then look for the three-dot menu icon in the top right corner. Select Block from the menu.
This method is useful if someone has been added to a group chat or if you have their contact saved but have never messaged them directly. The block takes effect when ready.
How to block someone from a group chat
If a group member is bothering you, you can block them without leaving the group. Long-press their name or message in the group chat until options appear. Select Block from the menu. You will no longer see their messages in the group, and they cannot send you direct messages, but you will still be in the group together.
Other group members will still see that person's messages — blocking only affects what you see and receive. If you want to leave the group entirely, that is a separate option in the group settings.
How to see who you have blocked
To view your blocked list, open Viber and tap the three-line menu (hamburger icon) in the bottom right. Go to Settings, then Privacy, then Blocked Contacts. You will see a list of everyone you have blocked on this device.
From this list, you can tap any blocked contact and select Unblock to restore communication with them. The unblock is when ready — they can message and call you right away, though they will not be notified that you unblocked them.
The difference between blocking and muting
Blocking and muting do different things. When you block someone, they cannot reach you at all — messages do not arrive, calls do not ring through. When you mute someone, they can still message and call you, but you will not get notifications. You can mute a contact by long-pressing their chat and selecting Mute.
Use muting if you want to stay in touch with someone but do not want constant alerts. Use blocking if you do not want contact with them at all. You can change your mind about either action at any time.
What happens when you block someone
Once you block someone, here is what changes when ready: their messages will not arrive in your inbox, their calls will not ring on your phone, and they will not see your online status or last seen time. If they send you a message, it will show as delivered on their screen, but you will never receive it.
The blocked person can still see your profile if they search for you directly, unless you have also set your profile to private in your privacy settings. They can also still see any messages you sent before blocking them — blocking does not delete past conversations from their phone.
Frequently Asked Questions
Will the person know I blocked them?
Viber does not send a notification when you block someone. However, they may realize it if their messages stop delivering or if they notice they cannot see your online status anymore. There is no way for them to know for certain without trying to contact you.
Can I block someone and still see their messages?
No. When you block someone, their messages do not arrive in your inbox at all. If you want to receive messages from someone but not be notified, use the mute feature instead of blocking.
What if I block someone by mistake?
You can unblock them anytime. Go to Settings, then Privacy, then Blocked Contacts. Find the person you want to unblock and tap Unblock. They will be able to message and call you again when ready.
Does blocking on one device block them on all my devices?
Yes. If you use Viber on multiple phones or tablets with the same account, blocking someone blocks them across all of those devices. The block syncs through your Viber account.
Can I block someone from a group chat without leaving the group?
Yes. Long-press their message or name in the group and select Block. You will not see their messages in the group anymore, and they cannot send you direct messages, but you will still be a member of the group.