Calchas is a genus of scorpions in the family Iuridae. At least four species in Calchas are described.
Species
Calchas anlasi Yagmur, Soleglad, Fet & Kovarik, 2013
Calchas birulai Fet, Soleglad & Kovarik, 2009
Calchas kosswigi Yagmur, Soleglad, Fet & Kovarik, 2013
Calchas nordmanni Birula, 1899