Bank Simpanan Nasional (BSN) is a government owned bank based in Malaysia.

BSN was incorporated on 1 December 1974 under the Minister of Finance at that time, Tengku Razaleigh Hamzah. With its incorporation, BSN has taken over all the duties and responsibilities of the Post Office Savings Bank.

MyDebit are chip-based ATM cards issued by Malaysian banks by utilizing regular ATM card to pay the merchant at the Point-of-Sale (POS) terminal. Some of the issuing banks are Affin Bank, Alliance Bank, Agro Bank, Ambank, Bank Islam, Bank Muamalat, Bank Rakyat, CIMB Bank, Hong Leong Bank, Maybank, Public Bank & RHB Bank. MyDebit payments system is managed by MyClear (Malaysian Electronic Clearing Corporation Sdn Bhd), a wholly-owned subsidiary of Bank Negara, the Central Bank of Malaysia.