Jasmine Whitbread, the first chief executive of Save the Children International, has announced that she will step down on 31 December after five years in the role.
Save the Children International was set up after the charity decided in 2009 to bring all 30 of the individual Save organisations under one worldwide body.
Whitbread, who took up the top job at Save the Children International in 2010 after five years as chief executive of Save the Children UK, said in a statement: "It’s not been an easy decision to leave, but I feel this is the right time – both for Save the Children to have a new leader and for me to find my next challenge."
Charlie Perrin, chairman of Save the Children International, said: "We feel truly grateful for Jasmine’s commitment and innovation over the past 10 years. Her tenacious leadership has helped us drive a bold new strategy of becoming one Save the Children."