Alfonso Tomas Pagaduan Araullo (born October 19, 1982), better known as Atom Araullo, is a Filipino model, TV presenter, triathlete and news reporter of ABS-CBN News and Current Affairs shows like Umagang Kay Ganda, TV Patrol World and Bandila. He was also a contributor to Studio 23's Y Speak.
Born to an activist family, Araullo spent most of his early childhood days with his parents battling it out during the Marcos dictatorship. This has exposed him to the political struggle in the country. During his early elementary school days, his parents exposed him to sports and the theater. As a result, he became part of several plays and has joined various competitions as a triathlete.