Achille Laviarde
| Achille Laviarde | |
|---|---|
| Pretender | |
| Born | 7 November 1841 Paris, France |
| Died | 16 March 1902 (aged 60) |
| Regnal name claimed | 26 March 1882 - 6 March 1902 |
| Throne(s) claimed | Kingdom of Araucanía and Patagonia |
| Pretend from | 1882–1902 |
| Spouse | Maria Elisa Octavia Guery |
| Predecessor | Orelie-Antoine de Tounens |
| Successor | Antoine-Hippolyte Cros |
Gustave-Achille Laviarde (November 17, 1841 – March 16, 1902) was, from 1882 to his death, pretender to the Kingdom of Araucanía and Patagonia under the name of "Achille I king of Araucanie".