Romans 1:18-21 appears to be saying "yes":

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> 18 For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who by their unrighteousness suppress the truth. 19 For what can be known about God is plain to them, because God has shown it to them. 20 **For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse**. 21 **For although they knew God**, they did not honor him as God or give thanks to him, but they became futile in their thinking, and their foolish hearts were darkened. (ESV)
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But Matthew 11:27 appears to be saying "no":

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> 27 All things have been handed over to me by my Father, **and no one knows the Son except the Father, and no one knows the Father except the Son and anyone to whom the Son chooses to reveal him**. (ESV)
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Does everyone know God or not?

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Related: [Is God hidden or not?](https://hermeneutics.stackexchange.com/questions/77165/is-god-hidden-or-not)