| Author | Titles | | 1.
| Ronchi, Vasco | 1 | | 2.
| Ronchí, Vittoria | 1 | | 3.
| La Roncière, Charles de, 1870-1941 | 2 | | 4.
| Roncuzzi, Isotta Fiorentini | 1 | | 5.
| Rondeau, Gérard, 1953-2016 | 2 | | 6.
| Rondeau, James | 5 | | 7.
| Rondeau, Martin | 1 | | 8.
| Rondet, Sylvain | 1 | | 9.
| Rondinone, Ugo, 1963- | 1 | | 10.
| Rondolino, Gianni | 1 |
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