Barons | Titles by Rank
- Barons of Jud
- Barons of Jugueiros
- Barons of Juigné
- Barons of Juiz de Fora
- Barons of Jundiá
- Barons of Jundiaí
- Barons of Junkerath
- Barons of Junqueira
- Barons of Juparanã
- Barons of Juqueri
- Barons of Juruá
- Barons of Kalbermatten
- Barons of Kap-herr
- Barons of Katzenstein
- Barons of Kauder
- Barons of Kaunitz
- Barons of Kayssersberg
- Barons of Keravéon
- Barons of Kergolay
- Barons of Kergorlay
- Barons of Kerpen
- Barons of Kersaint
- Barons of Kessler
- Barons of Ketelhodt
- Barons of Ketelhodt
- Barons of Ketteler
- Barons of Kettler
- Barons of Khuen von Belasy
- Barons of Kirchberg-Weissenhorn
- Barons of Kiveton
- Barons of Kleydorff
- Barons of Klopmann
- Barons of Knorring
- Barons of Knowles
- Barons of Koenigswarter
- Barons of Königsegg
- Barons of Königsegg-Aulendorf
- Barons of Korff
- Barons of Kottwitz
- Barons of Kottwitz-Erdödy
- Barons of Kotzau
- Barons of Kressenstein
- Barons of Kripp de Prunberg
- Barons of Kripp de Prunberg und Krippach
- Barons of Kripp zu Prunberg
- Barons of Krippach
- Barons of Krober
- Barons of Kronoberg
- Barons of Kruse
- Barons of Kulmer zum Rosenpichl und Hohenstein