O'Brien
Its design is pattern GRGWGWGGGGGY — the page of every tartan sharing this colour sequence.
The O'Brien tartan groups 2 setts — the same named design recorded as different cloths (its kilt, Carpet, Child's…, or a transcription apart). The master sett (★) is the exemplar.
| Sett | Thread count | Threads | Date |
|---|---|---|---|
| O'Brien ★ | LO/26 G12 Y4 G6 Y4 G12 LB6 G4 LB6 G24 R6 G/12 | 206 | 1995 |
 | |||
| 2 Variants: (Name) · O'Brien | |||
| Irish Family Tartan | LO/24 G12 Y4 G6 Y4 G12 LB6 G4 LB6 G24 R6 G/12 | 204 | 1994 |
 | |||