Several wingless hexapods are known as bristletails:
- Class Insecta
- Order Archaeognatha (or Microcoryphia) – insect order that includes the jumping bristletails and rock bristletails
- Order Zygentoma – insect order that includes silverfish, firebrats, and allies
- Class Entognatha
- Order Diplura – the two-pronged bristletails
- Other
- Thysanura – deprecated insect order of silverfish and allies, now separated into Zygentoma and Archeognatha