The short version: People You May Know on TikTok is a suggestion feature that uses your contacts, your other social accounts, your location history, and behaviour signals to guess who you know in real life, and it works whether or not you ever typed a phone number into the app yourself. You can limit it in a few taps, but turning it off does not undo the matches it has already made. If you want to understand why your old boss just showed up in your suggestions, this is the bit nobody fully explains.
What the feature does
People You May Know sits inside your Contacts or Friends tab on TikTok and recommends accounts it thinks you have a real-world connection to. Not accounts you might like based on your viewing habits, that is a different system, this one is specifically trying to map your actual social circle onto the app.
It draws on several things at once:
- Your phone contacts, if you ever granted TikTok access to your address book
- Facebook friends, if you linked your Facebook account during sign up
- People who have your number or email saved in their own contacts, even if you never saved theirs
- Shared device or network signals, such as logging in from the same wifi or having used the same phone at some point
- Mutual followers and overlapping accounts you already interact with
That last point about other people's contact books is the one that catches people out. You do not need to have uploaded a single contact for someone else's upload to put you in their suggestions, and theirs to put them in yours. One-sided sharing is enough to create a two-sided match.
A worked example of how this plays out
Say you run a small pottery studio and you open a TikTok account purely for the business, no personal posts, no real name in the bio, just glaze tutorials and kiln disasters. Three weeks in, your actual landlord turns up under People You May Know. You never added him as a contact and you have never mentioned the studio address online.
What likely happened is simpler than it feels. He has your mobile number saved because he texts you about the rent, and he granted TikTok contact access when he set up his own account last year. TikTok matched the number, matched it to your new business account because you signed up with the same number, and surfaced him to you because the connection runs both ways once one side has shared it. Nothing sinister, no hack, just an address book doing exactly what address books do.
The uncomfortable part is that this is working as designed. The feature exists to shrink the gap between your phone life and your TikTok life, and it is good at its job precisely because it does not ask permission from the second person in the match, only the first.
Why TikTok wants you to find people you know
Apps with strong friend graphs keep people coming back more than apps built purely on algorithmic content. If you follow three mates and your sister, you open the app for reasons beyond the For You feed, you open it to see what they posted, to reply, to feel part of something. TikTok's recommendation engine is excellent on its own, I have said as much when comparing it against Instagram Reels for business use, but even the best content algorithm benefits from a bit of social glue underneath it.
For creators and small business accounts this cuts both ways. Being suggested to people who already know you offline can bring in your first handful of genuine followers fast, which matters when you are trying to get any traction at all, something anyone looking at TikTok's growth programmes for small businesses should factor in before paying for ads too early. But it also means your business account can get tangled up with your personal network in ways you did not choose, which is a real problem if you are trying to post industry commentary without your entire extended family weighing in on it.
Step by step: controlling what it shares about you
You cannot switch People You May Know off entirely as a concept, but you can cut off most of the data feeding it. Here is the sequence that changes anything:
- Open Profile, tap the three lines, then Settings and privacy
- Tap Privacy, then scroll to Suggest your account to others
- Turn off Contacts and Facebook friends, both separately, both matter
- Go back to Settings and privacy, tap Privacy again, then Personalisation and data
- Turn off Sync contacts if it is still on
That is five taps across two screens and it reduces how often you appear in other people's suggestions going forward. What it will not do is unwind matches TikTok has already made. If your landlord already got suggested, switching this off today does not erase that past match from his feed. The data that created it has already been used, and TikTok's own privacy documentation is honest about this being a one-way door for existing suggestions even after you opt out, which is worth reading through on the Federal Trade Commission's consumer privacy guidance if you want the wider context on how social apps handle contact data generally.
You can also go into your suggestion list itself and tap the X next to individual names, which tells TikTok to stop showing you that specific person, though it does not necessarily stop them being shown you.
Want AI doing the heavy lifting in your marketing?
I build the systems that handle the boring 80 percent, so you get your week back. Done properly, with the human kept in.
The bit most privacy guides skip
Most articles on this topic stop at "here's how to turn it off" as if that solves the discomfort. It does not, and pretending otherwise is not useful. The real issue is that People You May Know proves TikTok can identify connections between you and other humans using data you never consciously handed over for that purpose, the contact book you uploaded to find your mum's number, not to build a social graph. That is not unique to TikTok, Facebook and LinkedIn have run the same playbook for over a decade, but TikTok gets treated by a lot of users, particularly younger ones, as a throwaway anonymous app in a way Facebook never was, and that assumption is wrong. If you created an account specifically to post anonymously, vent about work, or keep a hobby separate from your professional life, People You May Know is the exact mechanism most likely to blow that separation up, and it can do it through someone else's phone, not yours.
If anonymity matters to you, the fix is not a privacy toggle, it is never linking the account to a phone number or email that anyone close to you has saved, and never logging in on a device you share.
What this means for content strategy, not just privacy
If you are building a brand account rather than guarding your personal one, the calculation flips. You want the social graph working for you. That means linking Facebook deliberately if your Facebook following is bigger than your TikTok one, encouraging staff to follow the account from their personal profiles so mutual connections surface it, and treating the first fifty followers as seed audience rather than vanity numbers. Creators chasing faster growth sometimes combine this with structured programmes, which is exactly the territory covered in a walkthrough on joining a TikTok Creator Growth Challenge, and it is worth doing both at once since one works on your existing network and the other works on cold discovery.
Worth noting too, if the app starts throwing errors while you are fiddling with these privacy settings and suggestions stop refreshing altogether, that is sometimes a connectivity glitch rather than anything you changed, and there is a separate fix for TikTok saying no internet connection when you are clearly online, which is more common after a settings update than people expect.
For the rest of the series, see the TikTok Help: 19 Guides to Views, Pay, Freezing Fixes, Followers and TikTok Shop.
Frequently asked questions
Why does TikTok show me people I have never searched for?
Because the suggestions are built from contact matching and mutual connections, not your search or watch history, so you will see real-world acquaintances even if you have never typed their name into the app.
Can someone see that I appeared in their People You May Know list?
No, TikTok does not notify either side when a match is made, you only know it happened if you or they happen to open the suggestions tab and spot the name.
Does turning off contact sync delete past matches?
No, it stops new matches forming from your contacts going forward but it does not reverse suggestions TikTok has already generated using data collected before you switched it off.
Is People You May Know the same as the For You algorithm?
No, For You recommends content based on what you watch, like, and share, while People You May Know is a separate system focused purely on identifying people you might know offline through contacts, mutual friends, and shared devices.
