Razin (Moorish Arabic): “Composed, dignified, calm.”
Raduard (Dutch and French): Derived from Ancient Germanic name Radward, with Old High German roots rât (counsel) and wart (guard).
Rainfroy (French): Derived from Ancient Germanic name Raginfrid (peaceful advice), which in turn derives from Ancient Scandinavian name Ragnfríðr. Its roots are Gothic ragin (advice) and Old High German fridu (peace).
Rambaldo (Tuscan and Venetian Italian): Derived from Ancient Germanic name Ragimbald (bold advice), with roots ragin (advice) and bald (bold).
Ratimir (Slavic): “World battle” and “battle for peace,” from roots rati (battle, war) and miru (peace, world). This is still used in modern Croatian.
Razon (Moorish Arabic)
Redhar (Swedish): Derived from Ancient Scandinavian name Hræiðarr (home army), with roots hreiðr (home, nest) and herr (army).
Redimir (Slavic): “Rare peace” and “rare world,” from Proto–Slavic root rěd’k’ (sparse, rare) and Slavonic mir (peace, world).
Rek, Rink (Danish): “Warrior,” from Ancient Scandinavian root rekkr.
Relictus (English): “Relinquished.” This name was often given to orphans.
Reyer (Dutch): Derived from Ancient Germanic name Reginher/Raganhar, with roots ragin (advice, counsel) and hari (army).
Rhain (Welsh): “Stretched-out” or “stiff.”
Robaldo (Italian): Derived from Ancient Germanic name Rotbald, whose other forms included Chrodobald, Hrodbald, Hrotbald, and Rodbald. Its roots are hrôthi (fame) and Old High German bald (brave, bold).
Rosten (Danish): Derived from Old Norse name Hróðstæinn (famous stone), with roots hróðr (fame) and steinn (stone).
Ruggieri (Italian): Form of Roger (famous spear), from Ancient Germanic roots hrod (fame) and ger (spear).
Rustico (Italian): “Rural, rustic,” from Latin root rusticus. This is one of the protagonists of my all-time favourite Decameron story, its most famously dirty story.
Raha (Moorish Arabic): “Rest, comfort.”
Rahil (Judeo–Arabic): Form of Rachel (ewe).
Raimunda (Catalan): Feminine form of Raymond, derived from Ancient Germanic name Raginmund. Its roots are ragin (advice) and mund (protector). The Occitan form was Raymunda.
Ravenilda (English): Derived from Ancient Scandinavian name Hrafnhildr (battle raven), with roots hrafn (raven) and hildr (battle).
Redigon (Cornish and English): Form of Ancient Germanic name Radegund/Radgund (war counsel), from Old High German roots rât (counsel) and gund (war).
Regelinda (German and Slavic): Derived from Ancient Germanic roots regin (counsel, advice) and lind (linden tree, lime, lime wood shield; soft, gentle).
Regna (Danish): Nickname for names starting in Ragin (advice, counsel).
Reinika, Renika (Swedish): Nickname for names starting in Ragn (counsel, advice).
Reyna (English): Form of Regina (queen). The spelling was influenced by Old French word reine.
Rhainfellt (Welsh): Derived from roots rhiain (maiden; originally “queen”) and mellt (lightning).
Rigmár (Danish): Derived from Old High German name Ricmot, with roots rīhhi (distinguished, rich, mighty) and muot (courage; excitement, concern, wrath).
Rima (Moorish Arabic): “White antelope.”
Rixenda (Occitan). The French form was Rixende.
Rohese, Rohesia (English): Derived from Ancient Germanic name Hrodohaidis, with roots hrod (fame) and heid (sort, kind, type).
Rusha, Rusa (Arabic)