Stuart William Sinclair is a British businessperson who has been at the head of 9 different companies and presently is Chairman for International Personal Finance Plc and Chairman for Provident Financial Group.

He is also on the board of 7 other companies.

He previously was Non-Executive Chairman at Provident Financial Plc, President & Chief Operating Officer for Aspen Insurance Holdings Ltd. and President of City Fire Insurance Co. Ltd. (a subsidiary of Aspen Insurance Holdings Ltd.), Director-UK Retail Banking at NatWest Group Plc Director-Retail Banking at NatWest Markets Plc and Director-UK Retail Banking at The Royal Bank of Scotland Plc (both are subsidiaries of NatWest Group Plc), Council Member at The Royal Institute of International Affairs, Non-Executive Director at Platinum Bank OJSC, Chairman for GE Capital USD Funding Ltd., Chief Executive Officer for Tesco Personal Finance Plc, President at GE Capital Greater China, Chief Executive Officer-Consumer Finance Division at GE Capital Corp. Ltd., Partner at Oliver Wyman Ltd. and Partner at Mercer Management Consulting.

He received an MBA and an undergraduate degree from the University of California, Los Angeles, a graduate degree from Rutgers State University of New Jersey and a graduate degree from the University of Aberdeen.