- Parambikulam Tiger Reserve is located in Palakkad and Thrissur districts of Kerala, India.
- It is part of the larger Nilgiri Biosphere Reserve.
- In 1973, the Parambikulam Wildlife Sanctuary was established under the Kerala Forest Act, 1961.
- In 2009, the Parambikulam Wildlife Sanctuary was upgraded to the status of a Tiger Reserve.
- Area: The reserve spans an area of about 643 square kilometers (248 square miles).
- Core: 390.89 Km2
- Buffer: 252.77 Km2
- Total: 643.66 Km2
- River: Some of the prominent rivers in the reserve are:
- Parambikulam River
- Thunakadavu River
- Peruvaripallam River
- Lake: Major man-made reservoirs in the Parambikulam Tiger Reserve are:
- Parambikulam Reservoir
- Thunacadavu Reservoir (Thunakkadavu)
- Peruvaripallam Reservoir
- Tribe: Tribes residing in the reserve are:
- Kadar
- Malasar
- Muduvar
- Mala Malasar
- Flora: Evergreen Forests (Indian cinnamon,Ceylon ironwood, white dammar, and gurjan), Moist Deciduous Forests (teak, Indian laurel, crepe myrtle, and anjan), Shola Forests, Grasslands etc.
- Fauna: Tigers, Lion-tailed Macaques, Nilgiri Tahr, Elephants, Dhole, Sambar, Nilgiri Langurs, Sloth Bears, Nilgiri Marten , Gaur, Great Pied Hornbill, Western Ghats Flying Lizard, Malabar Pit Viper etc.