TortoiseSVN - The coolest interface to (Sub)version control
kdeSVN - Comfortable graphical SVN client for linux.
Xversion - Super easy enterprise class version control.
SmartSVN - SmartSVN is a graphical client for the Open Source version control system Subversion (SVN).
AnkhSVN - AnkhSVN is a Subversion SourceControl Provider for Visual Studio.
eSvn - eSvn - a GUI frontend to the Subversion revision system. With eSvn you can: