The basic ways to find someone on WhatsApp
WhatsApp finds people in three ways: by your phone's contact list, by searching a phone number directly, or by scanning a QR code. The app does not have a public directory or search-by-username feature like some other messaging platforms. If you want to message someone, you need either their phone number, their contact information already saved in your phone, or their QR code.
The most common method is the simplest: if someone's phone number is already in your phone's contacts, WhatsApp automatically shows you that they have the app when you open it. You do not need to do anything extra. The app syncs with your device's contact list on Android and iPhone and displays a list of contacts who use WhatsApp.
If the person is not in your contacts yet, you can search for them by their phone number. Open WhatsApp, tap the chat icon or the plus sign (depending on your phone type), and enter their full phone number including the country code. WhatsApp will tell you whether that number has an account.
Key Takeaways
- WhatsApp shows you contacts from your phone's address book who use the app, with no extra step required on your part.
- You can search for someone by their full phone number including country code, and WhatsApp will confirm whether they have an account.
- QR codes are a fast way to connect if you are in person or have a screenshot of someone's code, and you scan them through the app's camera feature.
- WhatsApp does not have a public search function by name, so you cannot find a stranger unless you already have their phone number or QR code.
- When you message someone for the first time, they see a notification that you are a new contact, and they can block or ignore you without you knowing.
Using your phone's contact list
The easiest way to find people on WhatsApp is to let the app do the work for you. When you first install WhatsApp or open it after updating, it asks permission to read your phone's contacts. If you allow this, WhatsApp automatically scans your address book and shows you a list of everyone in it who already has a WhatsApp account.
This happens in the background without you typing anything. You will see a "Contacts" tab or section in the app that displays all your phone contacts who use WhatsApp. Their names appear with a small WhatsApp icon next to them. You can tap any name to open a chat with them.
If someone you know gets WhatsApp after you first installed the app, they may not show up in your contacts list right away. WhatsApp updates this list periodically, but you can force a refresh by closing and reopening the app, or by going into your phone's settings and re-granting WhatsApp permission to access your contacts.
Searching by phone number
If someone is not in your phone's contacts but you have their phone number, you can search for them directly in WhatsApp. On iPhone, tap the compose icon (pencil and square) at the top right of the Chats tab. On Android, tap the plus icon at the bottom right. A screen will open where you can type a phone number.
Enter the full phone number including the country code. For example, if you are looking for someone in the United States, start with +1, then the area code and number. WhatsApp will search its database and show you whether that number has an account. If it does, you can tap the result and start a conversation.
If the number does not have a WhatsApp account, the app will tell you so. You cannot create a message thread with a number that is not registered on WhatsApp. If you want to contact that person, you will need to use a different method like SMS or another messaging app.
Scanning and sharing QR codes
Every WhatsApp account has a unique QR code. If you have someone's QR code — either as a screenshot, a printed image, or displayed on their phone in person — you can scan it to add them and start chatting when ready.
To scan a QR code, open WhatsApp and tap the three-dot menu (Android) or Settings (iPhone). Look for an option called "QR Code" or similar. Your phone's camera will open. Point it at the QR code until it focuses and recognizes the pattern. WhatsApp will then open that person's chat screen so you can send a message.
To share your own QR code with someone else, go to the same menu and select "QR Code". You will see your personal code displayed. You can take a screenshot of it, print it, or let someone else point their camera at their screen to scan it. This is useful if you want to give people a quick way to find you without typing your phone number.
What happens when you message someone for the first time
When you send a message to someone who does not have you saved as a contact, they see a notification that you are a new contact. On their screen, your message appears in a separate section, sometimes labeled "Message Requests" or "Other", depending on their phone type and WhatsApp version.
The person can read your message without you knowing they have seen it. They can also block you, delete the conversation, or ignore you without sending a response. You will not receive a notification that they blocked you — the message will straightforward appear to be sent, but they will never see it.
If they add you to their contacts and reply, the conversation moves to their main chat list and you will see their response normally. This is why it is sometimes helpful to introduce yourself in your first message, especially if you are contacting someone you do not know well.
Privacy and safety when finding people
WhatsApp does not show your phone number publicly, and people cannot find you by searching your name. This means you have some control over who can contact you. However, anyone who has your phone number can search for you and send you a message.
If you want to limit who can message you, you can adjust your privacy settings. In WhatsApp, go to Settings and look for Privacy options. You can control who can see your profile photo, status, and last seen time. You can also set your account so that only people in your contacts can message you, which blocks unsolicited messages from strangers.
Be cautious about sharing your QR code with people you do not know. A QR code is as sensitive as your phone number — anyone who scans it can start a conversation with you. Only share it with people you trust or in settings where you control who sees it.
Finding people in groups and business accounts
If someone has a WhatsApp Business account, they may have a public profile or a link you can use to contact them. Businesses sometimes share these links on their websites or social media. Clicking the link opens WhatsApp and starts a conversation with that business account.
If you meet someone in a WhatsApp group, you can tap their name to view their profile. From there, you can start a direct message with them. This is one way to connect with people you have a mutual connection with, since group members are usually people who know the group creator or other members.
Frequently Asked Questions
Can I find someone on WhatsApp if I only know their name?
No. WhatsApp does not have a search-by-name feature for finding strangers. You need either their phone number, their QR code, or their contact information already saved in your phone. If you know their name but not their number, you will need to find their phone number through another method first.
What if I search for a phone number and nothing comes up?
That phone number either does not have a WhatsApp account, or the account was deleted. You cannot message that person through WhatsApp. You can try contacting them through another method, like text message or a different app, to ask if they use WhatsApp or to get their correct number.
Can someone find me on WhatsApp without my permission?
Anyone who has your phone number can search for you and send you a message. They cannot see your profile unless you allow it in your privacy settings. You can restrict who can message you by going to Settings, Privacy, and choosing "Contacts only" for who can message you.
Is it safe to scan a QR code from someone I do not know?
Scanning a QR code is as safe as having someone's phone number — it just opens a conversation with them. The risk is not in the scan itself, but in what happens after. Do not scan QR codes from strangers online unless you trust the source, and do not share personal information in messages with people you do not know.
Can I learn about someone has blocked me on WhatsApp?
WhatsApp does not send you a notification if someone blocks you. Your messages will appear to be sent, but they will not reach the person. Indirect signs include not seeing their profile photo, status updates, or last seen time, but these could also mean they changed their privacy settings instead.