Updated: 04/26/2017 by Computer Hope

RU may refer to any of the following:

1. Short for Registry Usage, RU is a Windows Sysinternals utility to view the Registry space usage for the specified Registry key.

2. When referring to a domain, .ru is the country code for Russia.

3. Shorthand for are you, RU is a term often used in text-based communications such as chat, for example:

RU ok?
Hey RU there?
How RU doing?
RU serious?

Chat terms