Alter-globalization (also known as alternative globalization, alter-mundialization—from the French "altermondialisme"—or the global justice movement) is the name of a social movement that supports global cooperation and interaction, but which opposes the negative effects of economic globalization, feeling that it often works to the detriment of, or does not adequately promote, human values such as environmental and climate protection, economic justice, labor protection, protection of indigenous cultures and human rights.

The name may have been derived from a popular slogan of the movement: 'Another world is possible', which came out of the World Social Forum. "The alter-globalization movement is a cooperative movement designed to protest the direction and perceived negative economic, political, social, cultural and ecological consequences of neoliberal globalization". Many alter-globalists, unlike anti-globalists, seek to avoid the "disestablishment of local economies and disastrous humanitarian consequences". Most members of this movement shun the label "anti-globalization" as pejorative and incorrect since they actively support human activity on a global scale and do not oppose economic globalization per se.