There are multiple ways you can log out of Instagram.
To log out of Instagram:

Instagram app for Android
Tap

or your profile picture in the bottom right to go to your profile.
Tap

in the top right, then tap
Settings and privacy.
- Scroll to the bottom of the page and tap Log out [username].
- Tap Log out.

Instagram app for iPhone
Tap

or your profile picture in the bottom right to go to your profile.
Tap

in the top right, then tap
Settings and privacy.
- Scroll to the bottom of the page and tap Log out.
- Tap Log out.

Instagram.com from a mobile browser
Tap your profile picture in the bottom right to go to your profile.
Tap

at the top.
- Scroll to the bottom of the page and tap Log out.
- Tap Log out.

Instagram.com from a computer
- Click your profile picture in the top right.
- Click Log out.

Instagram Lite app for Android
Tap

or your profile picture in the bottom right to go to your profile.
Tap

in the top right, then tap
Settings.
- Scroll to the bottom, then tap Log out.
- Tap the box next to Remember my login info if you want Instagram to remember your login info.
- Tap Log out.
If you're having trouble logging in, try
these tips.