Walton will head up a newly created brand team tasked with developing an “innovative and ambitious” strategy for the organisation.
The team will have responsibility for fundraising, advocacy and marketing.
Prior to Save the Children, Walton worked at brand consultancy Wolff Olins, advising organisations including Amnesty International, Macmillan Cancer Support and Unilever on brand strategy.
Jane Cooper, director of communications and brand at UNICEF UK, says: “We are delighted to welcome Rebecca to this important new role at UNICEF UK. She brings an impressive breadth of skills and expertise, and will be adding to the exceptional talent we already have within the communications department.”
UNICEF UK was established in 1956 as one of 36 organisations set up to champion children’s rights around the world and support the United Nations Convention.