All But Dissertation or All But Degree, abbreviated ABD, or Candidatus Philosophiae or Candidate in Philosophy, abbreviated C.Phil. is a formal academic degree awarded to a student or an informal status that says a Doctor of Philosophy (PhD) student has completed all graduate study leading up to the final dissertation. This typically includes graduate coursework, preliminary/cumulative/qualifying examinations, and defense of the dissertation prospectus, advanced to candidacy.

Sometimes "C.Phil." or "Ph.D. (ABD)" is used as a title. In the U.S., ABD is an unofficial status, and C.Phil. is an official degree at very few universities.

In some schools a student can write an additional thesis at this point and receive a Master of Philosophy (MPhil) degree; in others, the MA, MS or MPhil (sometimes Candidate in Philosophy, CPhil) is conferred on an ABD student who has been advanced to candidacy for the Ph.D. Additionally, some American universities award the Master of Philosophy to students who have completed the coursework necessary for a Ph.D. but who have not completed the dissertation.

Qualifications | Doctoral degrees