Parkinson's rainbowfish
Melanotaenia parkinsoni
- Near threatened
- Card rarity: Uncommon
- Fish

Melanotaenia parkinsoni, the orange rainbowfish, is a species of rainbowfish in the subfamily Melanotaeniinae. It endemic to the western lakes of Papua New Guinea, specifically the Kemp Welsh River and Milne Bay.
Classification
- Class
- Actinopterygii
- Order
- Atheriniformes
- Family
- Melanotaeniidae
- Genus
- Melanotaenia