| Alexander Ray | Alexander Raychev | Alexander Rayevski |
| Alexander Rayevskiy | Alexander Rayevsky | Alexander Rayevsky (disambiguation) |
| Alexander Raymond Katz | Alexander Raytchev | Alexander Razborov |
| Alexander Razeghi | Alexander Razgulin | Alexander Razumov |
| Alexander Rödiger | Alexander Rückstuhl | Alexander Rüstow |
| Alexander Rüstow (soldier) | Alexander Rea | Alexander Rea (organist) |
| Alexander Read | Alexander Read (disambiguation) | Alexander Read (surgeon) |
| Alexander Rebbe | Alexander Reben | Alexander Redele |
| Alexander Reed Sarratt, Jr. | Alexander Reford | Alexander Refsum Jensenius |
| Alexander Rehding | Alexander Reichel | Alexander Reichenberg |
| Alexander Reichstein | Alexander Reid | Alexander Reid (art dealer) |
| Alexander Reid (disambiguation) | Alexander Reid (doctor) | Alexander Reid (playwright) |
| Alexander Reid mound | Alexander Reid Ross | Alexander Reid, 2nd Baronet |
| Alexander Reilley | Alexander Reimer | Alexander Reinagle |
| Alexander Reinefeld | Alexander Reinert | Alexander Rekhviashvili |
| Alexander Rekunkov | Alexander Remezkov | Alexander Rendel |
| Alexander Rendell | Alexander Reneff-Olson | Alexander Renkert |
| Alexander Rennie | Alexander Rentto | Alexander Renwick |
| Alexander Repenning | Alexander Resa | Alexander Resanov |
| Alexander Resch | Alexander Reservoir | Alexander Reshetnyak |
| Alexander Reshideovich Dyukov | Alexander Retuinskih | Alexander Reva |
| Alexander Revell | Alexander Revisited | Alexander Revva |
| Alexander Reyes | Alexander Reynolds | Alexander Rhea |
| Alexander Rhetor | Alexander Rhind | Alexander Rhind (footballer) |
| Alexander Riazantsev | Alexander Riazantsev (chess player) | Alexander Riazantsev (disambiguation) |
| Alexander Riazantsev (ice hockey) | Alexander Ribbenstrand | Alexander Rice |
| Alexander Rice (disambiguation) | Alexander Rice Esty | Alexander Rich |
| Alexander Richard David Shirreff | Alexander Richard Fowler | Alexander Richard Hamilton Hutchison |
| Alexander Richard Pettyfer | Alexander Richards | Alexander Richardson |
| Alexander Richardson (Australian politician) | Alexander Richardson (bobsledder) | Alexander Richardson (cyclist) |
| Alexander Richardson (disambiguation) | Alexander Richardson (MP) | Alexander Richardson (Puritan intellectual) |
| Alexander Richardson Binnie | Alexander Richmond Holladay | Alexander Riddoch |
| Alexander Rider | Alexander Ridha | Alexander Riemann |
| Alexander Riese | Alexander Riesenkampff | Alexander Rigby |
| Alexander Rigby (died 1694) | Alexander Riley | Alexander Riley (disambiguation) |
| Alexander Riley (merchant) | Alexander Riley (tracker) | Alexander Rimski-Korsakov |
| Alexander Rimsky-Korsakov | Alexander Ring | Alexander Rinnooy Kan |
| Alexander Ritchie | Alexander Ritchie (disambiguation) | Alexander Ritchie Scott |
| Alexander Ritschard | Alexander Ritter | Alexander Rittich |
| Alexander River | Alexander River (disambiguation) | Alexander River (New Zealand) |
| Alexander River (Western Australia) | Alexander River mallee | Alexander River National Park |
| Alexander River, New Zealand | Alexander Rives | Alexander Rives Skinker |
| Alexander Rizzoni | Alexander Road | Alexander Robert Badcock |
| Alexander Robert Charles Dallas | Alexander Robert David Lindsay, 28th Earl of Crawford | Alexander Robert Edgar |
| Alexander Robert Entrican | Alexander Robert Fyffe | Alexander Robert Gisborne Gordon |
| Alexander Robert Herbert | Alexander Robert Horne | Alexander Robert Johnston |
| Alexander Robert Kerr | Alexander Robert Lawton | Alexander Robert Leslie-Melville |
| Alexander Robert Leslie-Melville, 14th Earl of Leven | Alexander Robert Lindsay | Alexander Robert Lindsay, 29th Earl of Crawford |
| Alexander Robert Maule Ramsay | Alexander Robert Nairne | Alexander Robert Normand |
| Alexander Robert Richardson | Alexander Robert Stewart | Alexander Roberts |
| Alexander Roberts (cricketer) | Alexander Roberts Dunn | Alexander robertson |
| Alexander Robertson | Alexander Robertson & Sons | Alexander Robertson (artist) |
| Alexander Robertson (Canadian politician) | Alexander Robertson (chemist) | Alexander Robertson (disambiguation) |
| Alexander Robertson (English footballer) | Alexander Robertson (footballer, born 2003) | Alexander Robertson (Jacobite) |
| Alexander Robertson (MP) | Alexander Robertson (New York politician) | Alexander Robertson (police officer) |
| Alexander Robertson (rugby union) | Alexander Robertson (soccer, born 2003) | Alexander Robertson (veterinarian) |
| Alexander Robertson (veterinary surgeon) | Alexander Robertson and Sons | Alexander Robertson and Sons Ltd |
| Alexander Robertson and Sons Ltd (Yachtbuilders) | Alexander Robertson MacEwen | Alexander Robertson Murray |
| Alexander Robertson of Glasgowego | Alexander Robertson of Struan | Alexander Robertus Todd |
| Alexander Robertus Todd, Baron Todd | Alexander Robetrtson (veterinarian) | Alexander Robey Shepherd |
| Alexander Robey Shepherd (Dunbar) | Alexander Robillard | Alexander Robinson |
| Alexander Robinson (Canadian football) | Alexander Robinson (chief) | Alexander Robinson (Costa Rican footballer) |
| Alexander Robinson (cricketer, born 1886) | Alexander Robinson (cricketer, born 1924) | Alexander Robinson (disambiguation) |
| Alexander Robinson (footballer) | Alexander Robinson (Medal of Honor) | Alexander Robinson Boteler |
| Alexander Robinson Delgado | Alexander Robotnick | Alexander robotnick |
| Alexander Rocciasana | Alexander Rocha | Alexander Roche |
| Alexander Roche (disambiguation) | Alexander Roche, Baron Roche | Alexander Rochfort |
| Alexander Rocke Robertson | Alexander Rockwell | Alexander Roda Roda |
| Alexander Rodchenko | Alexander Rodenstock | Alexander Roderick McLeod |
| Alexander Rodic | Alexander Rodiger | Alexander Rodimtsev |
| Alexander Rodney Douglas | Alexander Rodnyansky | Alexander Rodríguez |
| Alexander Rodríguez (disambiguation) | Alexander Rodríguez (gymnast) | Alexander Rodríguez Colon |
| Alexander Rodriguez | Alexander Rodriguez (gymnast) | Alexander Rodriguez Colon |
| Alexander Rodzyanko | Alexander Roediger | Alexander Roelofs |
| Alexander Rofé | Alexander Rofe | Alexander Roger Lindsay |
| Alexander Rogers | Alexander Rogers (Australian politician) | Alexander Rogers (Canadian politician) |
| Alexander Rogers (sport shooter) | Alexander Rogoza | Alexander Rogozhkin |
| Alexander Rohan | Alexander Roinashvili | Alexander Roitbak |
| Alexander Roldugin | Alexander Rolevich | Alexander Rollett |
| Alexander Rolls | Alexander Roman Zatonski | Alexander Romance |
| Alexander romance | Alexander Romances | Alexander romances |
| Alexander Romanchuk | Alexander Romankov | Alexander Romanoff |
| Alexander Romanov | Alexander Romanov (Command & Conquer) | Alexander Romanov (disambiguation) |
| Alexander Romanov (fighter) | Alexander Romanov (ice hockey) | Alexander Romanov (ice hockey, born 1980) |
| Alexander Romanov (ice hockey, born 2000) | Alexander Romanov (Red Alert 2) | ALEXANDER ROMANOV (RED ALERT 2) |
| Alexander Romanov (Red Alert) | Alexander Romanov (wrestler) | Alexander Romanovich Bruce |
| Alexander Romanovich Drenteln | Alexander Romanovich Luria | Alexander Romanovich Vorontsov |
| Alexander Romanovsky | Alexander Romanovsky (chess player) | Alexander Romanovsky (disambiguation) |
| Alexander Romanovsky (ice hockey) | Alexander Romanovsky (pianist) | Alexander Romario Jesuraj |
| Alexander Romeril | Alexander Romero | Alexander Ronald George Strutt, 4th Baron Belper |
| Alexander Rondón | Alexander Rondeli | Alexander Rondon |
| Alexander Roos | Alexander Roosevelt Hottordze | Alexander Roper Vidler |
| Alexander Rose | Alexander Rose (athlete) | Alexander Rose (author) |
| Alexander Rose (bishop) | Alexander Rose (disambiguation) | Alexander Rose (geologist) |
| Alexander Rosen | Alexander Rosenbaum | Alexander Rosenbaum PAR |
| Alexander Rosenberg | Alexander Rosenberg (mathematician) | Alexander Rosenblatt |
| Alexander Rosenblatt (composer) | Alexander Roshal | Alexander roshenko |
| Alexander Roshenko | Alexander Roslin | Alexander Ross |
| Alexander ross | Alexander Ross (abolitionist) | Alexander Ross (architect) |
| Alexander Ross (Australian politician) | Alexander Ross (British Army officer) | Alexander Ross (Canadian politician) |
