Unicef, or The United Nations Children’s Fund, is a UN program that aims to promote the well-being of children and mothers around the world by providing healthcare, nutrition, education, and other essential services. It was established in 1946 and operates in more than 190 countries and territories.
The Unicef logo is most likely set in Univers Light, a realistic sans-serif font created by Adrian Frutiger in 1954. Additional information on this font can be found here.