What is the Canadian Equilivent to the US DEBT VALIDATION

The concept of debt validation is there in Canada.

Yes, you can ask for debt validation even in Canada.

As per the Collection Agencies Act and the Business Practices and Consumer Protection Authority,

"no debt collection agency shall attempt to collect payment of a debt from a debtor until the debtor has been notified by means of a private written communication, or a reasonable attempt has been made to notify the debtor by means of a private written communication, of the name of the creditor with whom the debt was incurred, the balance owing on the account, and the identity and authority of the person making the demand in respect of the collection of the debt."

So, you can very well understand from this part that debt validation is there in Canada.

You can ask for debt validation even in Canada.