Julio Potier

This plugin permits your members to delete their own account. You just can not delete all admin users, of course.
All languages are already supported because i use the internal l10n files form your installation 😉

Delete My Account

This plugin permits your members to delete their own account. All languages supported!

cmc3215

Allow users with specific WordPress roles to delete themselves from the Your Profile page or anywhere Shortcodes can be used using the Shortcode <code>[plugin_delete_me /]</code>. 
Settings for this plugin are found on the Settings -> Delete Me subpanel. Multisite and Network Activation supported.
How it works:
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<li>
A user clicks the delete link, which defaults to “Delete Account”, but can be changed.
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User is asked to confirm they want to delete themselves.
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If confirmed, user and all their Posts, Links, and (optionally) Comments are deleted.
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Deleted user (optionally) redirected to landing page URL, default is homepage, can be changed or left blank.
</li>
</ul>
Settings available:
<ul>
<li>
Enable or disable Network Wide, which applies a single page of settings across all Multisite network Sites.
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<li>
Select specific WordPress roles (e.g. Subscriber) you want to allow to delete themselves using Delete Me.
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<li>
<code>class</code> and <code>style</code> attributes of the delete link.
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<code><a></code> tag clickable content of the delete link.
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Landing page URL.
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Your Profile confirmation page Heading, Warning, Password (optionally require password), Button.
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Enable or disable delete link on the Your Profile page.
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Javascript confirm text for Shortcode.
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Enable or disable Javascript confirm for Shortcode.
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Enable or disable using a form (require password) instead of a link for Shortcode.
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Multisite: Delete user from entire Network or current Site only.
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Delete comments.
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<li>
E-mail notification when a user deletes themselves.
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</ul>

Delete Me

Great!

Allow users with specific WordPress roles to delete themselves from the Your Profile page or anywhere Shortcodes can be used.

Delete My Account vs Delete Me