The following individuals held a research doctorate.

Research doctorates are awarded in recognition of academic research that is (at least in principle) publishable in a peer-refereed academic journal. The best-known degree of this type is that of Doctor of Philosophy (PhD, or sometimes DPhil) awarded in many countries throughout the world. Others include the degree of Doctor of Education, various doctorates in engineering (such as the US (also Japanese and South Korean) Doctor of Engineering, the British Engineering Doctorate and the German Engineering Doctorate Doktor-Ingenieur and the German degree of Doctor rerum naturalium (Dr.rer.nat.).

Individuals may also be holders of a Doctorate of Divinity (DD).

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