He joins from Coutts & Co where he was one of the founding bankers of its sports and entertainment team.
Arbuthnot Latham & Co has poached a number of people from Coutts & Co over the past few months, more details here.
Kay starts with immediate effect, and is the latest in a series of hires at Arbuthnot Latham intended to boost the bank’s private banking and wealth management services.
Key said: “I am looking forward to the challenges ahead as well as the success that we and our clients will enjoy as their careers and businesses develop, enhanced by the advice and support that we will be providing.”