John Joseph Paul Studzinski, CBE (born March 19, 1956) is an American-born British investment banker and philanthropist.
Since September 2018 he has been Managing Director and Vice Chairman of the global investment-management firm PIMCO.
Prior to joining PIMCO, he was Vice Chairman of Investor Relations and Business Development, and a Senior Managing Director, at The Blackstone Group.
He had joined Blackstone in 2006 as global head of Blackstone Advisory Partners, the company's mergers and acquisitions advisory arm, and he ran that division for nearly a decade.
Prior to joining Blackstone, he was at Morgan Stanley from 1980–2003, and at HSBC from 2003–2006, building mergers-and-acquisitions divisions in both of those institutions.
Studzinski is heavily involved in hands-on philanthropy, patronage, and charity work.
His numerous charitable activities revolve mainly around the arts, the homeless, and human rights.
His own charity, the Genesis Foundation, supports and nurtures people in the creative fields in the early stages of their careers.
He co-founded and chairs the Arise Foundation, which combats human trafficking and modern slavery worldwide.
Born and raised in the U.S., Studzinski moved to the UK in 1984, and holds American and British citizenship.
Since 2006, he has divided his time between London and New York.