Miles Le Cornu joins Coutts on 8 September as Head of Private Client Trust Services at Coutts Trustees.
In his previous role, Miles was at BNP Paribas where he was head of their wealth management businesses in Jersey, including the trust company.
Miles will be based in Jersey and will also join the Coutts Trustees (Jersey) Board.
Martin Hall, Chief Executive of Coutts Trustees, said: "I am delighted to announce Miles' appointment. With over 25 years in the offshore fiduciary industry, Miles is extremely well positioned to play a significant role in shaping our business."