Yes, at any licensed operator. Anti-money-laundering law requires it, and no legitimate casino can pay out a significant withdrawal without it. The only real question is whether it happens at signup or at first withdrawal.
There is no way around it
Know-your-customer verification is an anti-money-laundering obligation, not an operator preference. A casino that lets you withdraw meaningful sums without verifying who you are is either breaching its licence conditions, and will lose the licence, or has no licence to lose.
So "no KYC casino" describes either deferred verification or an unlicensed operator. It does not describe a legitimate operator that has decided to skip the law.
When it happens, by market
Sweden and the Netherlands verify at account opening through BankID and DigiD or iDIN. You cannot deposit before it completes, and there is usually no document upload later because the bank identity already satisfies the requirement.
Denmark uses MitID at signup, similarly.
The United Kingdom verifies identity at account opening and typically asks for proof of address and source-of-funds evidence later, triggered by withdrawal amounts or the financial risk check thresholds.
Curaçao and other offshore licences vary widely. Most trigger verification at first withdrawal, which is where players who thought there was no KYC discover otherwise, usually while waiting for money.
Getting it done in one attempt
Complete it voluntarily at signup even when not required, from the document upload section of your account. Then your first withdrawal does not stop for it.
Photograph documents in daylight, in colour, with all four corners visible. Use a downloaded PDF bank statement rather than a screenshot of a banking app, which is the single most common rejection. Make sure the address format on your proof of address matches the address on your account exactly, including whether it says Flat or Apartment.
What they may ask for
Government photo ID, proof of address dated within three months, and proof of ownership of the payment method. Larger withdrawals can trigger source-of-funds questions, which is intrusive and is also the law.
Details, including which documents get rejected most often, are in our KYC guide.