D.P.H. Department of Public Health.
D.P.O. Distributing Post-office.
Dpt. Department.
Dr. Debtor; Doctor.
dr. Dram; Drawer.
D.Sc. See Sc.D.
D.S.O. Distinguished Service Order; District Staff Officer.
d.s.p., decessit sine prole=Died without issue.
D.T. Doctor of Theology.
d.t. Delirium tremens.