- Rico
- Rocky
- Reba
- Raina
- Rumphius
- Ranger
- Rush
- Roses
- Ricki (Ricky)
- Rock
- Roll
- Runner
- Ragu
- Rosanne
- Rottie
- Rio
- Rela
- Rusty
- Ralph Rotten
- Raider
- Rastus
- Rexie
- Rollie
- Ramrod
- Ruffels
- Roley Poley
- Roonie
- Rufus
- Rebha
- Ryan Seven
- Raye
- Raymond
- Rattatat
- Radar
- Rain
- Raisen
- Raja
- Roth
- Rags
- Runt
- Ross
- Ramsey
- Rapture
- Royce
- Reo
- Riley
- Rosie
- Roselle
- Raistlynn
- Russel
- Rudolph
- Rudy
- Remo
- Rafferty
- Ringo
- Rugby
- Rosco
- Rocco (ro-ko)
- Robert
- Runty
- Rommel
- Raskel
- Ramona
- Riker
- Rino
- Roller
- Roxburry
- Rhana (raa naa)
- Rhyme
- Ribbon
- Rice
- Roo
- Roux (Roo)
- Roddy
- Rodentia
- Rowdy
- Roddie
- Red
- Ra Rainer (sun princess)
- Raven
- Romeo
- Rebel
- Roxy (Roxie)
- Rodney
- Reeny
- Rex
- Rigel
- Ruby
- Raze
- Red
- Rider
- Riggor
- Rumor
- Rambo
- Rainey
- Rocko
- RC
- Rose
- Rhea
- Rudhie
- Ryan Coke
- Rooger
- Ratatosk
- Rascal
- Ravi
- Razzle
- Ryker
- Rox
Great R Names For Your Cat
