To block someone on YouTube mobile, you must use a mention notification or a live chat message, as there is no general "block channel" button in the app. Blocking prevents the user from sending you messages, mentioning you, or interacting with your channel in comments and live chats.
How to block someone on YouTube mobile: Introduction to the documented blocking method using live chat and mention notifications
The only documented way to block someone on YouTube mobile is through a live chat message during a stream or a mention notification. When you block a user, they can no longer comment on your videos, send you private messages, or subscribe to your channel. Their comments on your videos become invisible to you, and you will stop receiving notifications about their activity.
Block from a mention notification on iPhone and iPad
- Sign in to the YouTube app.
- On the Home screen, tap Notifications in the top right corner.
- Tap Mentions.
- Next to the mention notification from the person you want to block, tap More.
- Tap Block this user.
- When the pop-up appears, tap Block.
This flow works exactly the same on iPhone and iPad, using the same YouTube app and the Block this user label.
Block from a live chat or mention on Android
During a live stream, tap the message of the viewer you want to block, then tap Block in the pop-up message. For mention notifications on Android, follow the same steps as iOS: sign in to the YouTube app, tap Notifications on the Home screen, tap Mentions, then tap More beside the mention notification and choose Block this user.
What the official help pages don't document
There is no supported device list, minimum app version, or carrier-specific requirement documented for these blocking flows.
Frequently Asked Questions
What happens after I block someone on YouTube mobile?
After blocking, the user cannot comment on your videos, send you messages, subscribe to your channel, or mention you. Their previous comments on your videos will be hidden from you, but they can still see your public videos and channel page. Blocking is a one-way action; the blocked user can still see your public content and interact with it without restriction.
Can a blocked user still see my videos?
Yes, a blocked user can still see your public videos and channel. Blocking only restricts their ability to interact with you, it does not hide your content from them.
Can a blocked user still see my likes and subscribed channels?
No.
How do I handle a situation where someone is harassing me outside of live chat or mentions?
If the harassment occurs through comments on your videos, you can still block the user by finding one of their comments on your video, tapping the three-dot menu next to their comment, and selecting Block user. Alternative method: Reporting the user via the three-dot menu next to their comment or profile.
Is there a way to block someone from the comments section on mobile?
This method is not officially documented but is commonly used and effective. Alternative method: Restricting a user's comments via the three-dot menu on their comment.
Can I unblock someone on YouTube mobile?
Where can I find more YouTube mobile tips?
For additional YouTube mobile tips, check the YouTube Help Center's mobile-specific articles, which cover notification settings, privacy controls, and comment moderation features that work alongside the blocking function. Alternative method: Disabling notifications from a user via the bell icon on their profile. Alternative method: Using third-party apps like BlockTube, YouTube Channel Whitelist, or YouTube Comment Blocker for advanced blocking.
Related reading: How To Make A Youtube Video On Mobile and How To See Dislikes On Youtube Mobile.
