R
| Name | Year(s) | Appeared on | Instrument |
|---|---|---|---|
| Tom Raney | 1978–1981, 1996, 2004, 2008 | Studio Tan, Orchestral Favorites, Tinseltown Rebellion, Läther, QuAUDIOPHILIAc, Joe's Domage, One Shot Deal | Percussions |
| Michael Rapaport | 1994 | Civilization, Phaze III | Voice |
| Mac Rebennack | 1966 | Freak Out! | Piano |
| Ray Reed | 1978–1981, 1996, 2004, 2008 | Studio Tan, Orchestral Favorites, Tinseltown Rebellion, Läther, QuAUDIOPHILIAc, Joe's Domage, One Shot Deal | Woodwinds |
| Kurt Reher | 1966 | Freak Out! | Cello |
| Jerome J. Reisler | 1968 | Lumpy Gravy | Violin |
| Emil Richards | 1968, 1978–1981, 1996, 2004, 2008 | Lumpy Gravy, Studio Tan, Orchestral Favorites, Tinseltown Rebellion, Läther, QuAUDIOPHILIAc, Joe's Domage, One Shot Deal | Percussions |
| Lyle Ritz | 1968 | Lumpy Gravy | Bass |
| Trefoni Rizzi | 1968 | Lumpy Gravy | Guitar |
| Tony Rodriquenz | 1996 | The Lost Episodes | Saxophone |
| Rainer Römer | 1993, 1994, 1999 | The Yellow Shark, Civilization, Phaze III, Everything Is Healing Nicely | Percussions |
| Linda Ronstadt | 1987 | Uncle Meat (1987 CD Version) | Voice |
| John Rotella | 1966–1969, 1972, 1978, 1996 | Freak Out!, Absolutely Free, Lumpy Gravy, The Grand Wazoo, Studio Tan, Läther | Woodwinds |
| Alan Rubin | 2003 | Halloween | Trumpet |
| Jürgen Ruck | 1993, 1994, 1999 | The Yellow Shark, Civilization, Phaze III, Everything Is Healing Nicely | Guitar, Banjo |
| Peter Rundel | 1993, 1994, 1999 | The Yellow Shark, Civilization, Phaze III, Everything Is Healing Nicely | Violin |
Read more about this topic: List Of Performers On Frank Zappa Records