not that I know of

This page is about the conversational phrase not that I know of

Meaning

You can say this if you've been asked a question and, to the best of your knowledge, the answer is "no".

For example

  • "Has anyone reported a lost dog?"
    "Not that I know of, but I'll check for you. Just a moment."

  • "Are there any vegetarian restaurants around here?"
    "Not that I know of, but I'll ask Nick. He'd know."

Note:

1. Also "Not that I'm aware of", "Not as far as I know" and "Not to my knowledge"
2. You can use this if you're asked a "yes/no" question about information, but not if you're asked a "yes/no" question about how you feel or what you think.

Quick Quiz

To which question could you answer "Not that I know of"?

a. "Are you feeling any better?"

b. "Are they treating you well?"

c. "Are there any doctors here?"

Contributor: Matt Errey