HSBC Guyerzeller Bank AG, a member of the HSBC Group, was a Swiss private bank advising individuals and families in all matters of wealth management, investment advice and trust services.

In 1894 Adolf Guyer-Zeller, an engineer and one of the pioneers of the Swiss railways, founded Bank Guyerzeller A.G. to finance the construction of the railway line to the top of the Jungfrau mountain.

In 2009, HSBC Guyerzeller merged with HSBC Private Bank (Suisse) into one legal entity, under the newly appointed CEO of HSBC Private Bank Suisse (S.A.), Alexandre Zeller, who had joined the bank from the Banque cantonale vaudoise.

HSBC Private Bank, formerly known as HSBC Republic, was established in 1988 as Republic National Bank of New York (Suisse), but traces its ancestry back to 1966.

HSBC Private Bank (Suisse) had its headquarters in Geneva, Switzerland.