"it s no concern of mine" in German It's no concern of mine. Das ist nicht meine Sache. Das geht mich nichts an. Detailed translations for "it s no concern of mine" It's no concern of mine. It's no concern of mine.(also: It's not my concern., It's none of my concern.) Das ist nicht meine Sache. It's no concern of mine.(also: It's not my concern., It's none of my concern.) Das geht mich nichts an.