How to Comment Anonymously on a Facebook Group
The feature exists, the admins control it, and it is less anonymous than the word suggests.
How to comment anonymously on a Facebook group: it only works where the admins have turned on anonymous participation, and it covers your own anonymous post. Post with the anonymous toggle on, then reply in that thread as Anonymous member or Anonymous participant. Comments on other people's posts normally carry your name, and admins can see who you are.
There is no setting on your side. Where the feature is enabled, the composer shows an option to post anonymously when you start a post. Choose it before posting.
The important limit is that anonymity belongs to your own thread, not to the whole group. As of October 2026, Facebook's help center says comments you make on your own anonymous post are anonymous too. Replying under somebody else's post, including someone else's anonymous post, normally shows your name, so check the identity shown next to the comment box before you send anything.
And it is not anonymous to everybody. Group admins and moderators can see who wrote an anonymous post or comment, and Facebook's systems know regardless.
It also depends on numbers. Anonymity works among strangers, so it is a feature of large groups; in a group of forty, the content alone often identifies the author. For admins that makes the member count matter twice: it is what a newcomer reads before joining, and it is the public figure that Facebook group members add to, while only real, active members create the crowd that actually hides a poster.
The point about admins is the one worth being blunt about, because people use this feature for things where being wrong about it matters.
Anonymous posting hides your name from other members. The post appears from Anonymous member in a private group or Anonymous participant in a public one, with a blank icon in place of your photo, and ordinary members cannot see who wrote it.
Admins and moderators can. Facebook built it that way deliberately — a fully anonymous channel inside a group would be unmoderatable, and the people responsible for the community need to be able to act on whoever is using it.
So the honest description is pseudonymity from your peers, with full visibility to the people running the group and to Facebook.
That is adequate for the common uses: asking something embarrassing in a health group, raising a problem in a workplace-adjacent community, asking a beginner question somewhere intimidating. It is not adequate for anything where the group's admins are the people you are worried about, and it is not adequate for anything where being identified would have serious consequences.
Many groups also send anonymous posts to an approval queue, which admins can require for anonymous posts specifically, so an admin may read yours before anybody else does. That is another reason to assume they know.
The practical rule: if the anonymity needs to hold against the group's own leadership, this feature does not provide it, and there is no Facebook feature that does.
Checking whether the group allows it
Start a post in the group. If anonymous participation is enabled, the composer offers a Post anonymously toggle.
If you do not see it, the admins have not switched it on, and there is nothing you can do about that other than ask them.
The group's About section sometimes mentions it among the features, and some groups pin a post explaining how to use it.
It is also available only in groups rather than Pages or ordinary feed posts. There is no anonymous posting anywhere else on Facebook, and on a Page every comment carries your name or the name of the Page you are acting as. The rest of what Pages and profiles show is covered on the Facebook page, where every Facebook service is listed.
If a low likes count is what puts visitors off, Facebook likes are sold here per order from a public link, with no login asked.
Posting anonymously, step by step
Open the group and tap the write-something field.
Before typing, turn on the Post anonymously toggle. On some versions it sits next to your name at the top of the composer; on others it is an entry in the posting options.
Write the post. Your name is replaced in the preview, which is the confirmation to look for.
Submit. If the admins require approval for anonymous posts, the post enters a queue rather than publishing immediately, which is normal and is how admins keep the feature usable.
Commenting anonymously on your own thread
Once your anonymous post is up, replies you write under it stay anonymous. On the app, the identity used for a comment is shown by the small profile picture next to the Write a comment box; tap it if you need to check or switch, and look for Anonymous member or Anonymous participant before you send.
This catches people out in the obvious scenario: somebody posts anonymously, somebody else replies asking a follow-up question, and the original poster answers without looking at the label — under someone else's comment thread elsewhere in the group, or after switching identity by accident — identifying themselves in the conversation they went to trouble to anonymize. Check the label every time.
Outside your own thread, assume your name is attached. Commenting under another member's post, even an anonymous one, normally shows who you are, so if you need to raise something anonymously, the route is a new anonymous post.
Facebook does notify an anonymous poster of comments on their post, so the thread remains followable even if you decide not to reply at all.
For admins deciding whether to enable it
The setting is in Group Settings, under the anonymous participation entry, and admins can choose whether anonymous posts need approval before they appear.
It changes what a group is for. Health, parenting, workplace and recovery groups are transformed by it, because the questions people most need answered are the ones they will not attach their name to.
It also creates work. Anonymous posts are best reviewed, and the volume is higher than admins expect, because the barrier to posting drops.
And it needs a stated policy. Members who do not know that admins can see identities will assume otherwise, and discovering it later damages trust more than never having the feature would have. If you are still building the group, building a group past the quiet stage covers the earlier problem of getting people to post at all.
What a group's size does to all of this
Anonymity is only meaningful among strangers. In a group of forty people where everybody knows each other's situation, an anonymous post identifies its author by content alone.
That is a real limit and it is why the feature is useful in large groups and close to pointless in small ones.
It is also part of why people seek out large groups for exactly these questions: the crowd is the privacy.
For anyone running a group where this matters, it is an argument for growth that has nothing to do with marketing. A community needs to be above a certain size before its members will use it for the things it is best at. The visible member count is part of how a group gets there, since it is what people check before joining, and members for a Facebook group raise that number; the protection itself still comes from real members reading and posting. Groups also behave nothing like Pages in what they are good for, and what groups are good for sets out the difference.
Questions people ask about anonymous posting
Can I comment anonymously in a Facebook group?
On your own anonymous post, yes: if the admins have enabled anonymous participation, your replies in that thread are anonymous too. Comments on other members' posts normally carry your name.
Can admins see who posted anonymously?
Yes. Group admins and moderators can see the author of an anonymous post or comment, and admins can require anonymous posts to be approved before they appear.
Why is there no anonymous option in my group?
Because the admins have not enabled it. It is a group setting and there is nothing on the member side to switch on.
Can other members find out who I am?
Not from Facebook. In a small group the content itself often identifies the author, which is the real limit on the feature.
How do I reply to comments on my anonymous post?
Reply in the thread as usual, and check that the identity next to the comment box reads Anonymous member or Anonymous participant before you send. That label is the confirmation that your name is hidden.
Is it available outside groups?
No. There is no anonymous posting on Pages, in the main feed, or anywhere else on Facebook.
Keep reading
- members for a Facebook group — Anonymity only means anything among strangers, so a group has to pass a certain size before members use it for what it is best at — which is what members for a Facebook group addresses.
- building a group past the quiet stage — Everything here depends on the group being busy enough to be worth posting in, and building a group past the quiet stage covers that.
- what groups are good for — Groups behave nothing like Pages, and what groups are good for sets out the difference.