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| Tartan Name | Ross, Ryan (Personal) | | | | Category | Name
| | | | Designer | Not Specified | STA Ref | 7637 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Rossi (Personal) | | | | Category | Name
| | | | Designer | Rossi, David & Kerry | STA Ref | 6897 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Rothesay #2 | | | | Category | District
| | | | Designer | Not Specified | STA Ref | 984 | | Date Recorded | Not Specified | STWR Ref | 984 |
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| Tartan Name | Rothesay (Red) | | | | Category | Royal | | | | Designer | Sobieski Stewarts, The | STA Ref | 1533 | | Date Recorded | Not Specified | STWR Ref | 1533 |
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| Tartan Name | Round Table (1997) | | | | Category | Corporate
| | | | Designer | House of Edgar - Macnaughton Holdings Ltd. | STA Ref | 2365 | | Date Recorded | Not Specified | STWR Ref | 2365 |
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| Tartan Name | Rourke-Frew (Ontario) | | | | Category | Name
| Reference | 10819 | | Designer | Rourke CD, James | | | | Date Recorded | 26/04/2013 | | |
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| Tartan Name | Rowan (Personal) | | | | Category | Name
| | | | Designer | 'Smith Jnr, Dr Philip D | STA Ref | 2067 | | Date Recorded | Not Specified | STWR Ref | 2067 |
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| Tartan Name | Roy (2017) | | | | Category | Name
| Reference | 11763 | | Designer | Wilton, Brian | | | | Date Recorded | 11/04/2017 | | |
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| Tartan Name | Roy, R (Personal) | | | | Category | Name
| Reference | 13495 | | Designer | Roy, Randy | | | | Date Recorded | 26/04/2022 | | |
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| Tartan Name | Royal Navy (Official) | | | | Category | Military
| Reference | 12621 | | Designer | Margi Lawson | | | | Date Recorded | 19/09/2019 | | |
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| Tartan Name | Ruairidh (Personal) | | | | Category | Name
| | | | Designer | Not Specified | STA Ref | 7859 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Ruane, M (Personal) | | | | Category | Name
| Reference | 13371 | | Designer | Small, Matthew | | | | Date Recorded | 21/12/2021 | | |
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| Tartan Name | Ruck, R (Personal) | | | | Category | Name
| Reference | 14530 | | Designer | Ruck, Ronan | | | | Date Recorded | 05/11/2024 | | |
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| Tartan Name | Rui (Personal) | | | | Category | Name
| | | | Designer | Not Specified | STA Ref | 5391 | | Date Recorded | Not Specified | STWR Ref | none |
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| Tartan Name | Rust (Personal) | | | | Category | Name
| | | | Designer | Rust, Gordon | STA Ref | 555 | | Date Recorded | Not Specified | STWR Ref | 555 |
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| Tartan Name | Ruthven (V.S.) | | | | Category | Clan/Family | | | | Designer | Sobieski Stewarts, The | STA Ref | 1521 | | Date Recorded | Not Specified | STWR Ref | 1521 |
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