| Randolph, Meghan | Meghan Randolph | Director | 2012 | 1 | 1 |
| Ronder, Paul | Paul Ronder | Director | 1961 | 1 | |
| Reday, Horst | Horst Reday | Director | 1961 | 1 | |
| Rohde, Willi | Willi Rohde | Director | 1961 | 1 | |
| Rush, David | David Rush | Director | 1961 | 1 | |
| Reus, Emil | Emil Reus | Director | 1970 - 1978 | 2 | |
| Raicu, Mihai | Mihai Raicu | Director | 1983 | 1 | |
| Rappaport, Otto | Otto Rappaport | Director | 1974 | 1 | |
| Rein, Pete | Pete Rein | Director | 2013 | 1 | |
| Remacle, Don, J. | Don J. Remacle | Director | 1958 | 2 | |
| Rose, Kenneth | Kenneth Rose | Director | 1956 | 1 | |
| Reihs, Bernhards | Bernhards Reihs | Director | 1956 | 1 | |
| Ribeiro, Evaristo | Evaristo Ribeiro | Director | 1955 | 1 | |
| Reinhardt, Georg | Georg Reinhardt | Director | 1954 | 1 | |
| Ren, Mingyang | Mingyang Ren | Director | 2015 - 2017 | 6 | |
| Richter, Josef | Josef Richter | Director | 1915 | 1 | |
| Rich, Roy | Roy Rich | Director | 1951 | 1 | |
| Rookes, Douglas | Douglas Rookes | Director | 1951 | 1 | |
| Radojević, Dino | Dino Radojević | Director | 1951 | 1 | |
| Rajon, Sébastien | Sébastien Rajon | Director | 2000 - 2004 | 13 | |
| Rehder, Karl | Karl Rehder | Director | 1922 | 1 | |
| Rosenberg, Peter, Andreas | Peter Andreas Rosenberg | Director | 1894 - 1931 | 2 | 1 |
| Rein, Peter | Peter Rein | Director | 1999 | 1 | |
| Roome, Phyllis | Phyllis Roome | Director | 1999 | 10 | |
| Raina, M. K. | M. K. Raina | Director | 1999 | 2 | 1 |
| Rothstein, Peter | Peter Rothstein | Director | 1999 | 1 | |
| Ramsland, Clement | Clement Ramsland | Director | 1934 | 1 | |
| Richter, Raymund | Raymund Richter | Director | 1999 | 1 | 1 |
| Rosen, Samuel | Samuel Rosen | Director | 1938 | 1 | |
| Ranucci-Beckman, Bets | Bets Ranucci-Beckman | Director | 1939 | 1 | |
| Roche, Dick | Dick Roche | Director | 1971 | 1 | |
| Richard, Peggy | Peggy Richard | Director | 1947 | 1 | |
| Rojas, Xavier | Xavier Rojas | Director | 2000 | 1 | |
| Rittenouer, Robert, G. | Robert G. Rittenouer | Director | 1948 | 1 | |
| Rockefeller, Kay | Kay Rockefeller | Director | 1949 | 1 | |
| Rubinstein, Hannele | Hannele Rubinstein | Director | 1994 | 1 | |
| Roenneke, Rolf | Rolf Roenneke | Director | 1956 | 1 | |
| Russell, Kevin | Kevin Russell | Director | 2015 | 1 | |
| Risac, Claude | Claude Risac | Director | 1977 | 1 | |
| Ravid, Ofer | Ofer Ravid | Director | 2017 | 1 | |
| Rastgou, Sina | Sina Rastgou | Director | 2017 | 1 | |
| Roger, Christopher | Christopher Roger | Director | 2017 | 1 | |
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