Ballomma legala is a species of spider in the family Zodariidae. It is endemic to South Africa.
Ballomma legala is endemic to the Limpopo province of South Africa, where it is known only from Lekgalameetse Nature Reserve.
The species inhabits the Savanna biome at an altitude of 857 metres above sea level. It occurs in mixed woodland environments where it has been sampled by sifting riverine litter.
Ballomma legala is known only from females. The species is easily recognized by the dense field of spinules on the distal part of the endites and the epigyne with a V-shaped mark in front of a transverse row of spermathecae. The cephalothorax is medium brown with a thin dark margin, and the opisthosoma has a complex pale pattern on a dark grey background.
Ballomma legala are free-living ground-dwellers that inhabit the leaf litter of mixed woodland environments. They are collected through litter sifting methods in riverine areas.
The species is listed as Data Deficient and is protected within Lekgalameetse Nature Reserve. More sampling is needed to collect males and determine the full extent of its distribution.