Drassodella trilineata is a species of spider in the family Gallieniellidae. It is endemic to South Africa.
Drassodella trilineata is endemic to the Eastern Cape province and is known only from Keurkloof, Farm Ferndale, Baviaanskloof, at an elevation of 473 m above sea level.
The species was sampled during litter sifting from Afromontane forest.
Only the female is known. The species can be recognized by a narrow white median carapace stripe and a pair of narrow white dorsolateral abdominal stripes.
Drassodella trilineata is listed as Data Deficient. Additional sampling is needed to determine the species' range.