International Mountain Day is an opportunity to create awareness about the importance of mountains to life, to highlight the opportunities and constraints in mountain development and to build partnerships that will bring positive change to the world's mountains and highlands.

It was the UN General Assembly who designated 11 December, from 2003 onwards, as 'International Mountain Day'. This decision results from the success of the UN International Year of Mountains in 2002, which increased global awareness of the importance of mountains, stimulated the establishment of national committees in 78 countries and strengthened alliances through promoting the creation of the International Partnership for Sustainable Development in Mountain Regions, known as the 'Mountain Partnership (WSSD, Johannesburg, 2 September 2002). FAO was the designated lead coordinating agency for International Year of Mountains and is mandated to lead observance of International Mountain Day.