Hewitt, who has been named Vice Chairman of the Wimbledon club, will take over the Chairman role when Brook steps down in December after nine years at the helm.
Hewitt was with law firm Freshfields for more than 25 years, specialising in mergers and acquisitions, joint ventures and other commercial transactions. He has also been Managing Partner in the firm’s New York and Amsterdam offices.
The Oxford tennis blue has a long history with the AELTC, having been a full member of the club since 1988.
Commenting on the appointment, Philip Brook, Chairman of the AELTC and The Championships, said: “Ian’s combination of business acumen and considerable experience serving on the AELTC Committee and as Chair of the Wimbledon Foundation ensures that he will provide the AELTC with strong leadership for the coming years.
“For now, we look ahead to continuing our planning for a successful Championships in 2019 and a seamless handover in December 2019.”
Brook’s will leave the AELTC at the end of a period in which he has overseen significant development, including the launch of a new Wimbledon Master Plan, the No.1 Court Project including the addition of a retractable roof and the creation of the Wimbledon Foundation.
Most recently, he managed the acquisition of Wimbledon Park Golf Club, which will almost treble the AELTC’s existing 40-acre site.