- Razor
- Racket
- Regal
- Rocko
- Roofus
- Rifle
- River
- Rex
- Ross
- Romeo
- Rocky
- Rouge
- Rory
- Ransom
- Rooney
- Ruff
- Raleigh
- Ruckus
- Renegade
- Rudy
- Ronin
- Remington
- Roxx
- Robby
- Rodney
- Rico
- Rafael
- Reggie
- Rumor
- Rebel
- Roo
- Ringo
- Raid,Raider
- Riker
- Ruger
- Razzle
- Ramey
- Rover
- Rudolf
- Rogan
- Rufus
- Riley
- Rags
- Ranger
- Royce
- Reed
- Rascal
- Reno
- Rave
- Reuben
- Rouser
- Rosco
- Renaldo
- Rasta
- Roper
- Rodeo
- Rusty
- Ray
- Remy
- Rufio
- Ratchet
- Ralph
- Ruler
- Remus
- Radar
- Rage
- Ripley
- Randy
- Royal
- Ryder
- Remi