Sippanondha Ketudat (Thai: สิปปนนท์ เกตุทัต, RTGS: Sippanon Ketthat, pronounced [sìp.pā.nōn kèːt.tʰát]; 23 February 1931 – 16 July 2006) was a Thai nuclear physicist, educationist and technocrat. He was a professor at Chulalongkorn University, and served as Secretary-General of the , Minister of Education and Minister of Industry. He held seats on several university councils, including multiple chairmanships, and was an honorary fellow of the Royal Society of Thailand.