Alfonso Tomas Pagaduan Araullo (Tagalog: [aˈɾaʊʎɔ]; born October 19, 1982), professionally known as Atom Araullo, is a Filipino journalist, model, television presenter, triathlete, occasional actor, and radio host. Araullo is a national Goodwill Ambassador for the United Nations High Commissioner for Refugees and was conferred the title after undertaking missions to visit displaced families in Mindanao, Bangladesh, and Jordan. He is also an advocate for environmental conservation, notably in marine ecosystems. He received a star on the Eastwood City Walk of Fame on November 21, 2017.