Tisavarakumarn Damrong Rajanubhab (สมเด็จพระเจ้าบรมวงศ์เธอ พระองค์เจ้าดิศวรกุมาร กรมพระยาดำรงราชานุภาพ; rtgs: Ditsawarakuman Damrongrachanuphap) (21 June 1862 – 1 December 1943) was the founder of the modern Thai education system as well as the modern provincial administration. He was also an autodidact (self-taught) historian, and one of the most influential intellectuals of his time.