From Longman Dictionary of Contemporary EnglishI need hardly say/tell/remind etcI need hardly say/tell/remind etcBritish English used when you think people should already know what you are going to say I need hardly remind you that this information is confidential. → need
Examples from the Corpus
I need hardly say/tell/remind etc• Birds have never been one of my major interests, I need hardly say.• How I welcomed Night Duty, I need hardly say.• Type 4 I need hardly say how glad I am.• I need hardly say how heartily I sympathize with the purposes of the Audubon Society.• I need hardly say that I don't care to have things so.• I need hardly say that my wife's first impression of Lewis differed somewhat from my own.• Mr Bawn, I need hardly tell you, is a man of considerable dignity and I would not leave him here. 