Rodolfo Certeza Severino Jr. (27 April 1936 – 19 April 2019) was a Filipino diplomat. He served as the 10th Secretary-General of the Association of Southeast Asian Nations (ASEAN) from 1998 to 2002. He also served as the ambassador to Malaysia from 1989 to 1992. He was a professor at many universities in Singapore. He was born in Manila.