R
R.C. Fitzhugh
R.C. Fitzhugh (aka Resident Cat Fitzhugh
R.I.C.O. (Relaxing Interesting Cuddly Observant)
R.P. MacMurphy
R.T.
R2 D2
Raaee
Rabbi
Rabbit
Rabi
Rabindranath
Raccoo
Race Car
Racer
Rachel
Rachel (from the TV sitcom "Friends")
Rachel (from the tv-series "Friends")
Racso
Radar
Radar D Kat
Radburn
Radcliffe
Radiance
Raelin
Rafael
Rafajia
Rafe
Rafferty
Raffles
Rag Muffin
Ragamopp
Ragamour
Ragamuffin
Ragdoll
Rage
Raggedy Ann
Raggey Andy
Raggey Ann
Raggie
Raggles
Raging Bull
Ragmeister
Ragmop
Rags
Rags 2 Riches
Ragtime
Ragu
Rah Rah
Rahjah
Rahnee
Raidar
Raider
Rain
Rain Dancer Mao-ness
Rainbo
Rainbow
Rainbow Brite
Rainbow Dancer
Raincheck
Rainmaker
Raintree
Rainy
Raisin
Raison
Raja
Rajah
Raleigh
Ralph
Ralph Jr.
Ralphie
Ralphite
Ram
Rama
Rambis
Rambo
Rambunctious
Rameesh
Ramera
Ramirez (after Juan Sanchez Villalobos Ramirez in the movie "Highlander")
Ramone
Ramsay
Ramses
Ramsey
Ramu
Ran
Rana
Rance
Rand
Randall
Randall Flagg
Randi
Randolph
Random
Random Numbers
Randy
Ranger
Rani
Ransom
Raoul
Raow'n
Rappel
Rapsodia
Raptor
Rapture
Rapunzel
Raquel
RaRa
Ras
Rascal
Rascle
Rasgo
Rasheeba
Rashka
Rasputin
Raspy
Rasselas
Rassmuss
Rasta
Rasti
Rastus
Rat
Rat-Boy
Rat-Fink
Ratatat
Ratbag
Ratboy
Ratchet
Ratkiller
Ratly
Rattail
Rattles
Ratty
Ratumi
Raucci
Raul
Rav
Ravel
Raven
Ravenna
Ravi
Ravioli
Rawhide
Rax
Ray
Ray Charles
Ray Man
Rayata
Rayburn
Raymond
Raymond Burr
Raymond Chandler
Rayne
Raz
Razmataz
Razor
Razor Blade
Razz
Razzie
Razzle
Razzmatazz
Ready
Reagan
Reaper
Reba
Rebbi
Rebecah
Rebecca
Rebecca Sarah
Rebekah
Rebel
Reboot
Rebound
Red
Red Butler
Red Cloud
Red Or Redhead
Red Prince
Red Riding Hood
Red Rory
Redbeard
Redbone
Redbud
Redgent
Redi-whip
Redkilowatt
Redline
Redmond
Redneck
Redrose
Redwood
Reebok
Reebuls
Reef
Reefer
Reekey
Reena
Reeny
Reese
Reeses
Reeses Peanutbutter Cup (aka Fats)
Refund
Reg
Rega
Regalo
Regan
Regent
Reggae Sunsplash
Reggie
Regina
Regina Joan
Regina Phalange
Regional Transportation District (RTD for short)
Regis
Regulus
Rehnquist
Reilly
Reina de Corazones (Spanish for "Queen of Hearts")
Reindeer
Reisinho (Portugese: little king)
Reject
Reka Mao
Rella
Rem
Rema
Rembrandt
Rembrant
Remel
Remington
Remnants
Remo
Remus
Remy
Ren And Stimpy
Renaissance
Renaissance (Renai for short)
Renata
Rene Toupee
Renee
Renegade
Renfeild
Rennenka
Renny
Reno
Renoir
Renovia
Rental
Reo
Repete
Repo
Rerun
Rescue
Rescued
Resident Cat
Resigne
Retuy
Reuben
Rev
Reverend
Reverend Not Fredsel Dammit
Rex
Rex (after the Rex Banner character in The Simpsons cartoons)
Rexus
Rey
Rey de Corazones (Spanish for "King of Hearts")
Reyna
Reynold
RG Max
Rhapsody
Rhea
Rhedd Butler
Rheilly
Rhesus
Rhett
Rhett Butler
Rhia
Rhianna
Rhiannon
Rhinestone
Rhino
Rhoda
Rhode Island
Rhodes
Rhodesia
Rhonda
Rhone
Rhu And Barb
Rhubarb
Rhubard
Rhya
Rianne
Ribbon
Ribbons
Riboflavin
Ribs
Rica
Ricardo
Richelle
Riches
Richter
Rick
Rick (aka Richard, Dick and Little Man)
Ricka
Rickey
Ricki Lake
Rickie
Ricky
Ricky Ghostspirit
Ricky Ricardo
Ricky Ticky Tabby
Ricky-Ticky-Tavi
Rico
Rico (aka Jerico)
Ricochet
Ricotta
Riddle
Riddler
Rider
Ridgeway (aka - Reggie, Wiggly, Whichway or Fattyboy)
Ridiculous
Riel
Riff
Riff-Raff
Riffraff
Rigby
Riggor
Rigley
Rigoletto
Rikki
Rikki-Tikki-Kitty
Rikki-Tikki-Tavi
Rikkibain
R.C. Fitzhugh (aka Resident Cat Fitzhugh
R.I.C.O. (Relaxing Interesting Cuddly Observant)
R.P. MacMurphy
R.T.
R2 D2
Raaee
Rabbi
Rabbit
Rabi
Rabindranath
Raccoo
Race Car
Racer
Rachel
Rachel (from the TV sitcom "Friends")
Rachel (from the tv-series "Friends")
Racso
Radar
Radar D Kat
Radburn
Radcliffe
Radiance
Raelin
Rafael
Rafajia
Rafe
Rafferty
Raffles
Rag Muffin
Ragamopp
Ragamour
Ragamuffin
Ragdoll
Rage
Raggedy Ann
Raggey Andy
Raggey Ann
Raggie
Raggles
Raging Bull
Ragmeister
Ragmop
Rags
Rags 2 Riches
Ragtime
Ragu
Rah Rah
Rahjah
Rahnee
Raidar
Raider
Rain
Rain Dancer Mao-ness
Rainbo
Rainbow
Rainbow Brite
Rainbow Dancer
Raincheck
Rainmaker
Raintree
Rainy
Raisin
Raison
Raja
Rajah
Raleigh
Ralph
Ralph Jr.
Ralphie
Ralphite
Ram
Rama
Rambis
Rambo
Rambunctious
Rameesh
Ramera
Ramirez (after Juan Sanchez Villalobos Ramirez in the movie "Highlander")
Ramone
Ramsay
Ramses
Ramsey
Ramu
Ran
Rana
Rance
Rand
Randall
Randall Flagg
Randi
Randolph
Random
Random Numbers
Randy
Ranger
Rani
Ransom
Raoul
Raow'n
Rappel
Rapsodia
Raptor
Rapture
Rapunzel
Raquel
RaRa
Ras
Rascal
Rascle
Rasgo
Rasheeba
Rashka
Rasputin
Raspy
Rasselas
Rassmuss
Rasta
Rasti
Rastus
Rat
Rat-Boy
Rat-Fink
Ratatat
Ratbag
Ratboy
Ratchet
Ratkiller
Ratly
Rattail
Rattles
Ratty
Ratumi
Raucci
Raul
Rav
Ravel
Raven
Ravenna
Ravi
Ravioli
Rawhide
Rax
Ray
Ray Charles
Ray Man
Rayata
Rayburn
Raymond
Raymond Burr
Raymond Chandler
Rayne
Raz
Razmataz
Razor
Razor Blade
Razz
Razzie
Razzle
Razzmatazz
Ready
Reagan
Reaper
Reba
Rebbi
Rebecah
Rebecca
Rebecca Sarah
Rebekah
Rebel
Reboot
Rebound
Red
Red Butler
Red Cloud
Red Or Redhead
Red Prince
Red Riding Hood
Red Rory
Redbeard
Redbone
Redbud
Redgent
Redi-whip
Redkilowatt
Redline
Redmond
Redneck
Redrose
Redwood
Reebok
Reebuls
Reef
Reefer
Reekey
Reena
Reeny
Reese
Reeses
Reeses Peanutbutter Cup (aka Fats)
Refund
Reg
Rega
Regalo
Regan
Regent
Reggae Sunsplash
Reggie
Regina
Regina Joan
Regina Phalange
Regional Transportation District (RTD for short)
Regis
Regulus
Rehnquist
Reilly
Reina de Corazones (Spanish for "Queen of Hearts")
Reindeer
Reisinho (Portugese: little king)
Reject
Reka Mao
Rella
Rem
Rema
Rembrandt
Rembrant
Remel
Remington
Remnants
Remo
Remus
Remy
Ren And Stimpy
Renaissance
Renaissance (Renai for short)
Renata
Rene Toupee
Renee
Renegade
Renfeild
Rennenka
Renny
Reno
Renoir
Renovia
Rental
Reo
Repete
Repo
Rerun
Rescue
Rescued
Resident Cat
Resigne
Retuy
Reuben
Rev
Reverend
Reverend Not Fredsel Dammit
Rex
Rex (after the Rex Banner character in The Simpsons cartoons)
Rexus
Rey
Rey de Corazones (Spanish for "King of Hearts")
Reyna
Reynold
RG Max
Rhapsody
Rhea
Rhedd Butler
Rheilly
Rhesus
Rhett
Rhett Butler
Rhia
Rhianna
Rhiannon
Rhinestone
Rhino
Rhoda
Rhode Island
Rhodes
Rhodesia
Rhonda
Rhone
Rhu And Barb
Rhubarb
Rhubard
Rhya
Rianne
Ribbon
Ribbons
Riboflavin
Ribs
Rica
Ricardo
Richelle
Riches
Richter
Rick
Rick (aka Richard, Dick and Little Man)
Ricka
Rickey
Ricki Lake
Rickie
Ricky
Ricky Ghostspirit
Ricky Ricardo
Ricky Ticky Tabby
Ricky-Ticky-Tavi
Rico
Rico (aka Jerico)
Ricochet
Ricotta
Riddle
Riddler
Rider
Ridgeway (aka - Reggie, Wiggly, Whichway or Fattyboy)
Ridiculous
Riel
Riff
Riff-Raff
Riffraff
Rigby
Riggor
Rigley
Rigoletto
Rikki
Rikki-Tikki-Kitty
Rikki-Tikki-Tavi
Rikkibain
Riley
Rima
Rimbaud
Rin
Rin Rin
Rin Tin Tin
Rindy
Ringleader
Ringo
Ringo Starr
Rio
Rip
Rip Van Winkle
Rip-Van-Winkle
Ripley
Ripley (after the novel and the movie "The Talented Mr. Ripley")
Ripple
Rippy
Riri (short for retard)
Rita
Ritty
Ritz
Ritz Or Ritzy
River Bean
River Dancer
River Mama
River Walker
Rix
Riyadh
Riz
Rizla
Rizzo
RJ
Ro
Roach
Roadkill
Roald Berntsen (aka Toonces, named after a private investigator in Norway)
Roast
Roast-A-Kitty
Rob Roy
Robbie
Robert
Robert Cohen
Robert Redford
Robin
Robin Goodfellow
Robin of Loxley (Loxley is the birthplace of the original Robin Hood)
Robo-cat
Robocat
Robroy
Robyn
Rocca
Rocco
Rochester
Rock
Rockafella Skank
Rockefeller
Rocker
Rocket
Rocket Cat
Rocketman
Rockford
Rocko
Rocksteady
Rocky
Rocky And Bullwinkle
Rococo
Rodeo
Rodesia
Rodgers & Hammerstein
Rodman
Rodney
Rodney (after the character in the british sitcom "Only Fools And Horses")
Rodrigo
Roedtop
Rogan
Roger
Roger Crat
Roger the Dodger
Rogue
Rojo
Roland
Rolex
Rolf
Roli
Rolls
Rolo (Burmese)
Roma
Roman
Romana
Romani
Romano
Romeo
Romeo And Juliet
Romeow
Rommie
Romola
Romp
Romper
Romulus
Romйo Cliffhanger
Ron (Ronald) Reagan
Ronaldo
Rondeau
Roni
Ronin
Ronja
Ronjerimie
Ronnie
Ronron
Ronto
Rontu
Rontuarue
Roo
Rooby
Rooikat
Rooikat (in Afrikaans. English is Redcat)
Rookie
Roommate
Roopis
Roopis Lert
Roosevelt
Rooster
Rooster-Roo
Root Beer
Ror
Rorschach Inkblot
Rory
Rory (aka Rors)
Rosabells
Rosalind
Rosanna
Rosanna Banana
Rosario
Rosarita
Roscoe
Roscoe Rascalini
Rose
Rose Kennedy Cat
Rosebean
Rosebean (from a book by John Lennon)
Rosebud
Roselily
Rosemary
Rosencrantz (from Rosencrantz & Guildenstern are Dead)
Rosey
Rosi
Rosie
Rosie Derrida
Rosita (after Joey's chair in Friends)
Ross
Ross (from the TV sitcom "Friends")
Ross (from the tv-series "Friends")
Rossa
Rossalini
Rossini
Rostislav
Roswelle
Rot
Rothschild
Rotten
Rotten Little Kitty
Rouge
Rouhilio
Roussi
Route 3
Roux
Rouxamond
Rouxster
Rover
Row
Rowan
Rowan Tree
Rowdy
Rowen (Welsh for "slender and wize")
Rowin
Rox
Rox In Sox
Roxanna
Roxanne
Roxas
Roxette
Roxi Doodle Bug
Roxie
Roxorama
Roxy
Roxysan
Roxysaurus
Roxzee
Roy
Roy Rogers
Royal
Royal Emerald Steele
Roz
Roza
Rozalia
Rozz
Ru'Bella
Ru'Bella (aka Bella or Belly)
Ruari (Irish for "red king")
Ruben
Rubu Dugan
Ruby
Ruby Jean
Ruby Tuesday
Rucker
Ruddibuddy
Rude Boy
Rudi
Rudie
Rudikins
Rudolf
Rudolph
Rudolph Orangino
Rudolph Patoodolph
Rudy
Rudy Patootie
Rudyard
Rue
Ruff
Ruff Ruff I Love Fetch
Ruffian
Ruffles
Rufie
Ruford
Rufus
Rufus Redcat
Rufus T. Fleance L'Orange Jones
Rufus the naked mole cat
Rug
Rug Rat
Ruggles
Rugrat
Rum
Rum Tum
Rum Tum Tugger
Rumball
Rumblekitty
Rumblepurr
Rumbles
Rumhead
Rumi
Rumpelstiltskin
Rumple
Rumple-Teazer
Rumplenuts
Rumples
Rumplestiltzkin
Rumpleteazer
Rumpole Of The Bailey
Rumpus
Rumpus Cat
Runner
Runt
Runtis
Runway
Rupaul
Rupert
Rupert (middle name: Biggles)
Rupert [Middle Name: Biggles]
Ruppert
Ruru
Rusafee
Rush
Rusifi
Ruskie
Ruskin
Russell
Russia
Russian
Rust
Rustle
Rustler
Rusty
Ruth
Rutherford B. Hayes
Ruthie (aka Baby Ruth)
Rutledge
Ryanne
Ryder
Ryeli
Ryelle
Ryon
