Deleting your LinkedIn profile is a permanent decision, so ensure you’re certain before proceeding. First, log into LinkedIn and navigate to your profile settings by clicking on your profile picture at the top right, then selecting “Settings & Privacy” from the dropdown menu. In the Settings & Privacy page, find “Account preferences” in the left-hand menu, then scroll down to “Account management” and click on “Close account”.
Source: BookMark
LinkedIn will prompt you to verify your identity by entering your password. After verification, select a reason for closing your account from the dropdown menu, provide optional feedback, and confirm your decision. Once confirmed, your LinkedIn account will be deactivated immediately, and your profile will be permanently deleted within a few weeks. Be aware that this action will remove your connections, messages, and other data from LinkedIn, and it cannot be reversed.