| Reference Number | Title | Date | Series |
| RNT/PR/4/1/888 | Twelfth Night | 2011 | Press Production Review Files |
| RNT/CO/1/592 | Twelfth Night | 2011 | Costume Department Production Files |
| RNT/PL/2/1358 | Peter Hall on Twelfth Night | 21/01/2011 | Platforms Programmes |
| RNT/PR/3/817 | Twelfth Night | 2011 | Rehearsal and Production photographs |
| RNT/SM/1/611 | Twelfth Night | 2011 | Prompt Scripts |
| RNT/PL/2/1361 | Talking Twelfth Night: Marton Csokas and Rebecca Hall | 31/01/2011 | Platforms Programmes |
| RNT/SM/2/2/304 | Twelfth Night | 2011 | Cottesloe Show Reports |
| RNT/PP/1/4/296 | Twelfth Night | 2011 | Cottesloe Programmes |
| RNT/PL/3/1192 | Peter Hall on Twelfth Night | 31 January 2010 | Platforms Audio Recordings |
| RNT/PP/5/670 | Twelfth Night | 2011 | Rehearsal Photographs |
| RNT/PP/2/4/294 | Twelfth Night | 18 January 2011 | Cottesloe Posters |
| RNT/PR/2/5/114 | 'Twelfth Night' | January 2011 | Press Releases 2010-2019 |
| RNT/AE/1/2/334 | Talking Twelfth Night:Simon Paisley Day, Amanda Drew and David Ryall | 4 February 2011 | Platform Video Recordings |
| RNT/AE/1/2/332 | Peter Hall on Twelfth Night | 21 January 2011 | Platform Video Recordings |
| RNT/AE/1/2/333 | Talking Twelfth Night: Marton Csokas and Rebecca Hall | 31 January 2011 | Platform Video Recordings |
| RNT/AE/1/2/260 | Talking Twelfth Night: Simon Callow, Charles Edwards & Finty Williams | 7 February 2011 | Platform Video Recordings |
| RNT/AE/1/1/217 | Twelfth Night | 2011 | Digital Performance Videos |
| RNT/LI/3/432 | Twelfth Night | January 2011 | Scripts - Later Drafts |