| Ranks and insignia of the Schutzstaffel | Wykaz stopni w SS |
| Ranma ½ | Ranma ½ |
| Rann of Kutch | Solnisko Kachchh |
| Ranong | Prowincja Ranong |
| Ranong Province | Prowincja Ranong |
| ransom | okup |
| Ransomware | Ransomware |
| Ranulf I of Aquitaine | Ranulf I |
| Ranulf II of Aquitaine | Ranulf II |
| Ranunculaceae | Jaskrowate |
| Ranunculales | Jaskrowce |
| Ranunculidae | Jaskrowe |
| Ranunculus acris | Jaskier ostry |
| Ranunculus arvensis | Jaskier polny |
| Ranunculus glacialis | Jaskier lodnikowy |
| Raoul Bott | Raoul Bott |
| Raoul Dufy | Raoul Dufy |
| Raoul Wallenberg | Raoul Wallenberg |
| rap | rap |
| Rap rock | Rapcore |
| Rapa Nui | Rapa Nui |
| Rapa Nui language | Język rapanui |
| Rapacious bird | Sokołowe |
| Rapakivi granite | Granit rapakiwi |
| Rapanui | Rapa Nui |
| Rapcore | Rapcore |
| rape | gwałcić |
| Rape-seed | Kapusta rzepak |
| Rapeseed | Kapusta rzepak |
| Raphael | Rafał |
| Raphael Holinshed | Raphael Holinshed |
| Raphael Kalinowski | Rafał Kalinowski |
| Raphael Lemkin | Rafał Lemkin |
| Raphaël Haroche | Raphaël Haroche |
| Raphaël Poirée | Raphaël Poirée |
| Raphaël Wicky | Raphaël Wicky |
| Raphe nuclei | Jądra szwu |
| Raphinae | Dronty |
| rapid | bystry |
| Rapid Amplification of cDNA Ends | Robert Southey |
| Rapid Rectilinear | Aplanat |
| rapid test | szybki test |
| rapid transit train | szybki pociąg tranzytowy |
| rapidly | gwałtownie |
| Rapido River | Rapido |
| rapier | rapier |
| rapist | gwałciciel |
| Rapla | Rapla |
| Rapla County | Prowincja Rapla |
| rapper | raper |
| Rapperswil | Raperswil |
| Rapperswil-Jona | Raperswil |
| Rapsodie espagnole | Rapsodia hiszpańska |
| rapture | zachwyt |
| Rapture of the Deep | Rapture of the Deep |
| rapunzel | roszponka |
| Raquel Welch | Raquel Welch |
| RAR | RAR |
| rare | rzadki |
| rare book | biały kruk |
| Rare Earth hypothesis | Hipoteza jedynej Ziemi |
| rare species | rzadki gatunek |
| rarely | rzadko |
| rarity | rarytas |
