The puku (Kobus vardonii) is a medium-sized antelope found in wet grasslands in southern Democratic Republic of Congo, Namibia, Tanzania, and Zambia. Nearly one-third of all puku are found in protected areas, zoos, and national parks due to their diminishing habitat.
Puku stand about 80 cm (31 in) at the shoulder and weigh from 70 to 80 kg (150 to 180 lb). The puku is sandy brown in colour, with the underbelly a slightly lighter brown. The coat is rougher than the similar-sized southern reedbuck, lechwe or impala, or the smaller oribi. Males have 50-cm-long, ridge-structured horns which are very vaguely lyre-shaped.
There are two subspecies, the Senga Puku (Kobus vardonii senganus) and the southern puku (Kobus vardonii vardonii).
Puku are found almost exclusively in marshy grassland and dambos of the Kilombero Valley of Tanzania, where they eat grasses. The Puku diet is flexible in regards to type of grasses consumed, there is also little dietary competition with other bovids.  Crepuscular, active in the early morning and late afternoon. When scared, puku repeat a shrill whistle sound. Females gather in herds of up to 20 individuals. During the rainy season, many herds will come together for added safety, typically reaching around 50 females. Males hold territories and attempt to persuade herds of females to stay within their territories for as long as possible. In the wet season, due to large floods in their habitat they migrate to a high elevation and in dry seasons remain near water.
- IUCN SSC Antelope Specialist Group (2008). "Kobus vardonii". IUCN Red List of Threatened Species. IUCN. 2008. Retrieved 17 January 2009.CS1 maint: uses authors parameter (link)old-form url Database entry includes a brief justification of why this species is of near threatened
- Jenkins, Richard K.B; Maliti, Honori T.; Corti, Graham R. (April 2003). "Conservation of the puku antelope in the Kilombero Valley, Tanzania". Journal of Biodiversity and Conservation. 12 (4): 787–797. doi:10.1023/A:1022426026881. ISSN 0960-3115.
- Rodgers, W. A. (1984). "Status of puku (Kobus vardoni Livingstone) in Tanzania". African Journal of Ecology. 22 (2): 117–125. doi:10.1111/j.1365-2028.1984.tb00685.x. ISSN 0141-6707.
- Skinner, J. D.; Chimimba, Christian T. (2005). The Mammals of the Southern African Sub-region. Cambridge University Press. pp. 685–. ISBN 978-0-521-84418-5.
- Rduch, Vera (2016). "Diet of the Puku Antelope (Kobus Vardonii) and Dietary Overlap with Selected Other Bovids in Kasanka National Park, Zambia". Mammal Research. 61 (3): 289–297. doi:10.1007/s13364-016-0268-y.
- Macdonald, David Whyte (2006). The Princeton Encyclopedia of Mammals. Princeton University Press. ISBN 9780691140698.