|Count of Vermandois|
|First holder||Leodegar, Count of Vermandois|
|Last holder||Louis de Bourbon|
The Count of Vermandois was the ruler of the county of Vermandois.
Beneficiary counts of Vermandois
- Leodegar, Count of Vermandois (c. 484).
- Emerannus (c. 511), son of previous.
- Wagon I (c. 550).
- Wagon II (c. 600), son of previous.
- Bertrude, daughter of previous and wife of Clotaire II, added Vermandois to the royal domain.
- Garifrede (c. 660).
- Ingomar, Count of Vermandois (c. 680).
Beneficiary counts of Vermandois and abbots of Saint Quentin de Monte
- Bernard, son of Charles Martel, abbot of St Quentin de Monte (now Mont-Saint-Quentin near Péronne).
- Jerome, brother of previous, count of Vermandois and abbot of St Quentin de Monte (714–771).
- Fulrad son of previous, abbot of St Quentin de Monte (after 771).
- Guntard, Count of Vermandois (771–833) and then abbot of St Quentin de Monte (till 833).
- Hugh, son of Charlemagne, abbot of St Quentin de Monte (833–844).
- Adalard, Count of Vermandois, son of Gisla, granddaughter of Charlemagne, count of Vermandois (833–864) and then abbot of St Quentin de Monte (844–864).
- Baldwin Iron Arm abbot of St Quentin de Monte (864–879).
- Teutricius (864–886) and then abbot of St Quentin de Monte (879–886) or Theodoric, Count of Vermandois (c. 876), a descendant of Childebrand, brother of Charles Martel.
- Pepin II of Vermandois, son of Bernard, King of Italy
- Pepin III of Vermandois
- Herbert I, Count of Vermandois, also count of Senlis
- Herbert II, Count of Vermandois
- Adalbert I, Count of Vermandois, lord of Péronne and St Quentin
- Herbert III, Count of Vermandois
- Adalbert II, Count of Vermandois
- Otto, Count of Vermandois
- Herbert IV, Count of Vermandois
- Adelaide, Countess of Vermandois
- Hugh the Great, Count of Vermandois and Valois[a] by marriage
- Ralph I, Count of Vermandois
- Ralph II, Count of Vermandois, son of Ralph I and Petronilla of Aquitaine
- Elisabeth, Countess of Vermandois
- Eleanor, Countess of Vermandois; died either childless or without any designated heirs, lands passed to French crown
- Louis de Bourbon, comte de Vermandois (1669–1683), illegitimate son of Louis XIV and Louise de la Vallière, title held by appanage.
- All of Herbert's lands would go to Hugh upon Herbert's death in 1080, giving the Capetians an important foothold.
- Gabriele 2018, p. 102.
- Anselme, Histoire Genealogique de la Maison royale de France, 1726.
- M. Fouquier-Cholet, Histoire des Comtes héréditaires du Vermandois, Saint-Quentin, 1832.
- Ioh. Mabillon, Annales ord. Sancti Benedicti. Ticinense. Lucae, 1739.
- Louis Moreri, Le Gran Dictionnaire Historique, Paris, 1743–1749.
- Gabriele, Matthew (2018). "The Provenance of the Descriptio Qauliter Karolus Magnus: Remembering the Carolingians in the entourage of King Philip I (1060–1108) before the First Crusade". Viator. University of California Press. 39 (2): 93-117.