Earls, Counts | Titles by Rank
- Counts of Diepholz
- Counts of Diesbach de Belleroche
- Counts of Diessen
- Counts of Diet
- Counts of Dietrichstein
- Counts of Dietrichstein-Ebenau-Pulsgau-Hollenburg
- Counts of Dietrichstein-Hollenburg
- Counts of Dietrichstein-Nikolsburg
- Counts of Dietrichstein-Weichselstätt
- Counts of Dietz
- Counts of Digoine
- Counts of Dillingen
- Counts of Dillsberg
- Counts of Diniz Cordeiro
- Counts of Dohna
- Counts of Dohna-Carwinden
- Counts of Dohna-Lauck
- Counts of Dohna-Leistenau
- Counts of Dohna-Reichertswalde
- Counts of Dohna-Schlobitten
- Counts of Dohna-Schlobitten-Leistenau
- Counts of Dohna-Wundlacken
- Counts of Dommaigné
- Counts of Donadío de Casasola
- Counts of Donalda
- Counts of Donghelberghe
- Counts of Dönhoff
- Counts of Donoratico
- Counts of Donoratico e Castagneto
- Counts of Donoughmore
- Counts of Dortmund
- Counts of Drechsel
- Counts of Dreuille
- Counts of Dreüille
- Counts of Dreux
- Counts of Dreux-Brézé
- Counts of Duas Pontes-Lichtenberg
- Counts of Dücker-Plettenberg
- Counts of Duckwitz
- Counts of Dunois
- Counts of Duparchy
- Counts of Duras
- Counts of Durat
- Counts of Durbuy
- Counts of Dürckheim
- Counts of Durenberg
- Counts of Durfort
- Counts of Durfort de Lorge
- Counts of Eberstein
- Counts of Eberstein in Neu-Eberstein