Rofillus (Rufillus, Rophilus) of Forlimpopoli [a] and the Dragon of Forlimpopoli
Romanus (Romain) of Rouen [a] and the Gargouille
Romanus [b]
Samson of Dol [a] and the Dragon of Trigg; and the Dragon of Brittany; and the Dragon of the Pentale Monastery at St-Samson-sur-Risle; and of a fourth dragon
Samson [b]
Samson [c]
Samson [d]
Samson [e]
Senán and the Péist of Inis Cathaig
Senzius and the Dragon of Blerana
Servanus (Serf, Serbán) and the Dragon of Dunning
Servulus of Trieste [a]
Servulus [b] and the Dragon of Trieste
Severinus, bishop of Amiterno and a dragon vision
Silvester [a] and the Dragon of Rome
Silvester [b]
Silvester [c]
Silvester [d]
Simeon Stylites [a] and the dragon that attacks his pillar; and the dragon that he heals
Siward and the Dragon of Orkney
Syrus (Cyr) of Genoa and the Basilisk of Genoa