| Name | Oncidium mathieuanum H. Gustav Reichenbach & Warszewicz |
| Authorship | H. Gustav Reichenbach & Warszewicz |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Oncidium |
| Citation | 1856 Allg. Deutsche Gart.-Zeitung 24: 321 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Oncidium mathieuanum H. Gustav Reichenbach & Warszewicz |
| Identification made in | 2007 (1) |