This article explains how to block users on Instagram to prevent them from seeing or interacting with your posts. Instructions apply to the Instagram app on both Apple and Android devices, and to Instagram in a web browser.

When you block an Instagram user, they won’t be able to find your profile, posts, or Instagram story. They won’t be notified that you’ve blocked them, but they can figure it out with a little detective work. They can mention your username in their posts, but those mentions won’t appear in your activity stream. To block another user:

Download and open the Instagram app on your iOS or Android device.

Find and load the profile of the user account you want to block.