Ankit Gupta, who only joined the firm six months ago, will lead the region from New Zealand.
Toni Kerr, Ngāti Raukawa ki Te Tonga and Ngāti Tūwharetoa joins the board.
Chair Tony Mitchell announces own departure, appointment of new CEO.
David Kirk says the appointment adds deep expertise in innovation and business transformation.
Experienced litigator Hayden Wilson was a driving force behind Kensington Swan's decision to combine with Dentons.
Duncan Smith has returned from overseas to take up the role.
Tim Poskitt is to manage Australasian operations.
Will Noble will take up the role late September 2020.
The seven concerned are Maree Wilson, Marg Joiner, Kate Walsh, Andy Cameron, Emma Ward, Caitlin Taylor and Imogen Morris.
Hillary Campbell is the youngest person and only the second woman to hold the leadership role.
