Other species closely related to the Chamois, members of the Rupicaprini group, do not exist either in Greece or in Europe. The closest relatives of the Chamois can be found in the remote subtropical forests and mountains of Central and Southeast Asia (Himalayan mountain range and surrounding areas), Taiwan, Sumatra, the Japanese islands, and the Rocky Mountains of North America.

The closest relative of the Chamois among wild ungulate mammals found in Greece is the Cretan wild goat (Capra aegagrus cretica). This species, which belongs to the subfamily Caprinae – like the Chamois – but not to the Rupicaprini group, has a clearly different geographical distribution compared to the Chamois, and under natural conditions, the two species do not overlap, as the Cretan wild goat (Kri-Kri) maintains free-living populations only on the Greek islands (mainly in Crete).

However, in the second half of the previous century, there were releases of Cretan wild goats in various parts of Greece, including Mount Parnitha, where a small population of Cretan wild goats seems to have been established. It is speculated that a few Chamois may also live there, which, if this is the case, would have been released by humans during the same period.

The subfamily Caprinae is divided into three tribes: Rupicaprini, Caprini, and Ovibovini. The Ovibovini includes two genera and two species (Ovibos moschatus, Budocras taxicolor), while the Caprini includes five genera and 18 species (Ammotragus spp., Psudois spp., Hemitragus spp., Capra spp., and Ovis spp.), among which are the domestic sheep, the domestic goat, and the Cretan wild goat (Capra aegagrus). The Rupicaprini tribe, to which the Chamois belongs, includes four genera and nine species: Capricornis spp. (C. sumatraensis, C. crispus, C. swinhoei), Naemorhedus spp. (N. baileyi, N. caudatus, N. goral), Oreamnos spp. (O. americanus), and Rupicapra spp. (R. rupicapra, R. pyrenaica) (Shackleton & Lovari, 1997). All species of this tribe are distributed across Eurasia, with only one (Oreamnos americanus) found exclusively in North America.