Are Hong Kong bank and HSBC the same?

Excuse me, I'm a bit confused about something. Could you please clarify if Hong Kong bank and HSBC are one and the same entity? I've heard people mention them interchangeably at times, but I'm not entirely sure if they're actually the same financial institution. If they're not, could you elaborate on the key differences between the two? I'm particularly interested in their operations, reach, and any notable distinctions that might be relevant to someone looking to do business with them. Thank you for your time and assistance.