The Red Xenomorphs were a faction of rebel Xenomorphs that made up the Red Army.
After the kidnapping of the Queen Mother on Xenomorph Prime, the planet's primary hive that once housed the ruler became distraught, with a horde of rebellious genetic hybrid Xenomorphs turning against the hive and escaping, forming their own one. Eventually, a Red Queen Mother was born, which quickly led to the formation of the red army. Once the red Xenomorphs posed enough of a formidable threat to combat the primary hive, the faction waged war against their brethren to determine who would rule the planet. The Red Xenomorphs were ultimately destroyed.
- The Red Xenomorphs can be seen as the same as red ants. Red ants and black ants will fight to the death much like the black variation and red variation of the Xenomorphs.
- NECA made a Genocide 2-pack with a Red Xenomorph Warrior and a normal black Xenomorph Warrior.
- In the comic book, the Red Xenomorphs are not actually intended to be red, but rather their coloration is merely a means for the reader to distinguish them, as is explained in the Q&A section of the comic. However, the novelization contradicts this, stating that the variant Xenomorphs are in fact colored red (albeit subtly so), a result of the genetic mutations that make them different in the first place.