| RO | RO |
| Ro ro ship | Traghetto |
| Ro ro vessel | Traghetto |
| ROA | ROA |
| roach | scarafaggio |
| road | via |
| Road bicycle racing | Ciclismo |
| Road bike | Bicicletta da corsa |
| road book | guida stradale |
| road conditions | viabilità |
| Road for high-speed traffic | Semi-autostrada |
| road fork | bivio stradale |
| road haulage | autotrasporto |
| Road hockey | Street hockey |
| road map | carta stradale |
| road metal | ghiaia |
| road network | viabilità |
| Road of Bones | Strada delle Ossa |
| Road of the Seven Lakes | Strada dei Sette Laghi |
| road open to truck traffic | strada camionabile |
| road roller | compressore |
| road safety | sicurezza stradale |
| Road safety camera | Radar |
| road salt | sale da spargere |
| road side | bordo della strada |
| road sign | cartello stradale |
| Road signs in Sweden | Segnaletica orizzontale |
| Road surface marking | Segnaletica orizzontale |
| road sweeper | spazzino |
| road tax | pedaggio |
| road test | prova su strada |
| Road to Avonlea | La strada per Avonlea |
| Road to Perdition | Era mio padre |
| road to success | strada del successo |
| Road Town | Road Town |
| road traffic | traffico |
| Road Warrior Animal | Road Warrior Animal |
| Road Warrior Hawk | Road Warrior Hawk |
| road way | carreggiata |
| road where stopping is prohibited | corsia di emergenza |
| road worker | stradino |
| Road- | Autotrenista |
| road-mender | cantonière |
| Road-rule enforcement camera | Radar |
| roadability | tenuta di strada |
| roadblock | blocco stradale |
| Roadracers | Roadracers |
| Roadrunner Records | Roadrunner Records |
| Roadrunner United | Roadrunner United |
| Roads in Ireland | Strade irlandesi |
| roadside | banchina |
| roadside cafe | autogrill |
| roadside hawk | poiana beccogrosso |
| Roadside restaurant | Autotrenista |
| roadstead | rada |
| roadster | cavallo da tiro |
| roadway | carreggiata |
| roadworthy | in condizioni di circolazione |
| Roald Amundsen | Roald Amundsen |
| Roald Dahl | Roald Dahl |
| Roald Hoffmann | Roald Hoffmann |
| roam | vagare |
| roamer | viaggiatore |
| Roanne | Roanne |
| Roanoke Island | Isola di Roanoke |
| roar | gridare |
| roar with laughter | scoppiare dalle risa |
| roaring | rombante |
| roaring drunk | sbronzo |
| Roaring Forties | Quaranta ruggenti |
| roaring success | successo strepitoso |
| roast | rimproverare |
| roast beef | arrosto di manzo |
| roast chestnut | caldarrosta |
| roast chicken | pollo arrosto |
| roaster | rosticciere |
| roasting | rovente |
| roasting pan | teglia |
| rob | assaltare |
| Rob Bourdon | Rob Bourdon |
| Rob Halford | Rob Halford |
| Rob Lee | Robert Edward Lee |
| Rob Levin | Rob Levin |
| rob of | portare via |
| Rob Pike | Rob Pike |
| Rob Rensenbrink | Rob Rensenbrink |
| Rob Roy | Rob Roy |
| Rob Schneider | Rob Schneider |
| Rob Van Dam | Rob Van Dam |
| Rob Zombie | Rob Zombie |
| Robben Island | Robben Island |
| robber | aggressore |
| robbery | furto |
| robbery with violence | furto con estorsione |
| Robbie Fowler | Robbie Fowler |
| Robbie McEwen | Robbie McEwen |
| Robbie Williams | Robbie Williams |
| robbing | furto |
| Robby Krieger | Robby Krieger |
| robe | abito |
| Robert | Roberto |
| Robert A. Heinlein | Robert Anson Heinlein |
| Robert Adam | Robert Adam |
| Robert Adler | Robert Adler |
| Robert Altman | Robert Altman |
| Robert Andrews Millikan | Robert Millikan |
| Robert Antelme | Robert Antelme |
| Robert Baden-Powell | Robert Baden-Powell |
| Robert Bellarmine | Roberto Bellarmino |
| Robert Beltran | Robert Beltran |
