文学博士（Doctor of Letters, D.Litt.）学位以及荣誉学位，在中文一般是指在大学中文学相关科系的研究所博士班毕业后可获得，但亦有纯粹因文学上的成就贡献而获得大学授予。在英美等地区，文学博士常代表比哲学博士更高的荣誉。

Doctor of Letters (Latin:Litterarum doctor; D.Litt., Litt.D., D. Lit., or Lit. D.) is an academic degree, a higher doctorate which, in some countries, may be considered to be beyond the Ph.D. and equal to the Doctor of Science (Sc.D. or D.Sc.). It is awarded in many countries by universities and learned bodies in recognition of achievement in the humanities, original contribution to the creative arts or scholarship and other merits. When awarded without an application by the conferee, it is awarded as an honorary degree.