Comment 8 for bug 349825

@alawrenc - in Inkscape 0.47 you can change the interface language from within Inkscape: Open 'File > Inkscape Preferences > Interface' and change the setting for 'Language' according to your wishes.

Since you don't tell which language is currently used by the interface of Inkscape on your system, I can't give you the translated GUI names, but you can open the Preferences dialog with the second to last icon on the top toolbar, and the 'Interface' page is the fourth item from the bottom in the list on the left side of the preferences dialog.

Regarding changing the settings on the Mac OS X level: Inkscape 0.47 - for what ever reason - picks up the language that is set as 'Order for sorted lists' in the 'Language' tab of the 'International' system preferences.