Can a bank demand money they say you owe them from ten years ago?

Yes, a bank can demand repayment of a debt from ten years ago if it has not been discharged in bankruptcy or if the statute of limitations for collecting that debt has not expired. The statute of limitations varies by state and type of debt, typically ranging from three to ten years. However, if the debt is still within the legal timeframe, the bank may pursue collection actions, including demanding payment. It's advisable to verify the debt's validity and consult legal advice if needed.