Robert II (Rodbert, Chrodobert) (died 12 July 807^{[citation needed]}) was a Frankish nobleman who was count of Worms and of Rheingau and count of Hesbaye^{[citation needed]} around the year 800.

It has been proposed that he is the father of Robert III of Worms, and the earliest-known male-line ancestor of the French royal family, the so-called Capetians (including the Valois and the Bourbons), and of other royal families which ruled in Portugal, Spain, Luxembourg, Parma, Brazil and the Kingdom of the Two Sicilies.

Robert was probably the son of Thuringbert of Worms and Rheingau, and thus a grandson of Robert I, Duke of Neustria (c. 697–748).^{[according to whom?]} An alternate theory has him as the son of Robert, son of Thuringbert.^{[according to whom?]}

It is also possible that Ingerman of Hesbaye and Cancor were the brothers of Robert of Hesbaye, and Landrada, mother of Saint Chrodegang, archbishop of Metz, is likely to have been his sister.^{[according to whom?]} Ermengarde, the wife of emperor Louis the Pious, was probably his niece.^{[according to whom?]}

• Settipani, Christian, Les Ancêtres de Charlemagne, 2e édition revue et corrigée, éd. P & G, Prosopographia et Genealogica, 2015
• Settipani, Christian. Addenda aux "Ancêtres de Charlemagne, 1990
• Riché, Pierre, The Carolingians: a family who forged Europe