- Rob Oswin
- Rob Otnik
- Rob Owen
- Rob Oxford
- Rob P
- Rob Paine
- Rob Palmer
- Rob Paparozzi
- Rob Papen
- Rob Paravonian
- Rob Parissi
- Rob Parker
- Rob Parrett
- Rob Parton
- Rob Parton's Jazztech Big Band
- Rob Patterson
- Rob Patterson
- Rob Pattinson
- Rob Paulsen
- Rob Paulsen
- Rob Pearce
- Rob Pearson
- Rob Pearson
- Rob Perry
- Rob Perry, Sandra Phillips
- Rob Phas
- Rob Piltch
- Rob Pine
- Rob Pitch
- Rob Pitre
- Rob Pitre & The Zydeco Playboys
- Rob Playford
- Rob Poppy
- Rob Porcaro
- Rob Potylo
- Rob Poulin
- Rob Prester
- Rob Preston
- Rob Price
- Rob Pronk
- Rob Pronk Jazz Orchestra
- Rob Pulsifer and the E'town Express
- Rob Quichotte
- Rob Quintet Mazurek
- Rob Quist Great Northern Band
- Rob Randolph
- Rob Ransom
- Rob (Rap)
- Rob Raroux
- Rob Ratner Jazz Quartet
- Rob Ray
- Rob Razor Presents
- Rob Real
- Rob Reason
- Rob Rebeck
- Rob Reddy's Honor System
- Rob Reddy's Honor System
- Rob Reddy's Honor System
- Rob Reddy's Sleeping Dogs
- Rob Reed
- Rob Reich
- Rob Reid
- Rob Reid
- Rob Reiner
- Rob Reng
- Rob Reynolds
- Rob Reynolds
- Rob Rice
- Rob Riddim
- Rob Rider
- Rob Riley
- Rob Rinderer
- Rob Rio
- Rob Rippa
- Rob Rives
- Rob Roar
- Rob Robbins