Mr Nieuwoudt will join UBP in April. In his role at Watson Wyatt he has worked with institutional clients on absolute return investment strategies, mainly in the hedge fund sector. As UBP deputy head of alternative investment research he will contribute to the bank's global strategy.
Stefan Zellmer, UBP global head of alternative investment research, based in New York, said: "This role is in line with the dynamic growth of the hedge fund industry on these two continents.
"Gideon's profound experience and his specialized knowledge of these fast-growing markets give him the ideal profile for integrating them even more effectively into our research universe."
The Geneva-based UBP group manages over $83 billion, as of June 2006, and is the second largest worldwide bank to use hedge funds as a part of its investment strategy.