A former Deutsche Bank, Citibank, Standard Chartered and BNP Paribas executive, Hammoud will be responsible for driving the Abu Dhabi business and will work closely with office heads in Singapore, Geneva, London and Dubai.
Hammoud will also be responsible for providing clients with financial advice with a focus on supporting the Ultra High Net Worth segment and large Family offices.
"With this hire, Barclays continues to expand its team across the MENA region while adopting a more focused approach to providing clients with bespoke financial solutions," the statement said.
Gilbert added: "This is a significant appointment, particularly in the context of our growth plans across the MENA region in general and the UAE in particular. Our aim is to cement Barclays position as the destination of choice for HNW and UHNW individuals within the region.
"We are delighted to welcome Haidar to the team. His appointment demonstrates our commitment to our clients through providing them with on-ground world class financial services and products."
Prior to joining Barclays, Hammoud held several leadership positions at global financial institutions including Deutsche Bank, Citibank, Standard Chartered and BNP Paribas.