Mark O'neill is a Dutch artist with 314 auction lots recorded since 1999.
| Title | Date | House | Price |
|---|---|---|---|
| Cattle Resting | 2026-05-27 | Adams | EUR 5,000 |
| Through the Drawing Room | 2026-03-25 | Adams | EUR 2,000 |
| The Heirloom | 2026-03-25 | Adams | EUR 2,000 |
| The Wood Shed | 2025-11-26 | Adams | EUR 1,500 |
| Tea Pot | 2022-03-30 | Adams | EUR 2,500 |