Spider’s mom in Avatar is Paz Socorro. That answer comes from Avatar lore outside the movies and gives Spider a direct link to both the RDA and Colonel Miles Quaritch.
If you only watched Avatar: The Way of Water, you may have missed that part of his family history, since the films keep it mostly offscreen.

That missing backstory matters because Spider is more than just the Sullys’ human kid. His origin connects him to the wider Avatar family tree.
That link shapes what you can expect from the Avatar sequels.
The Direct Answer From Avatar Lore

Paz Socorro is Spider’s mother. Avatar: The High Ground from Dark Horse confirms this.
That comic also connects her to Miles Quaritch, which means Spider is the biological son of the original human Quaritch, not the Recom version.
Paz Socorro Is Spider’s Mother
Paz Socorro served as an RDA Scorpion gunship pilot. The comics name her directly as Spider’s mother, which fills in the gap left by the films.
Miles Socorro And His Link To Quaritch
Spider’s full name is Miles Socorro, and that surname ties him to his human roots. His father is Miles Quaritch, which connects Spider’s family to both the RDA and the main conflict on Pandora.
Where Avatar: The High Ground Confirms It
Avatar: The High Ground states this detail explicitly. The comic, published through Dark Horse, lays out Paz’s role, her connection to Quaritch, and Spider’s parentage.
What Happened To Paz On Pandora

Paz’s story is short and tragic. She fought for the RDA on Pandora, and her death left Spider without a mother from infancy.
Her Role As An RDA Scorpion Gunship Pilot
Paz worked as an RDA Scorpion gunship pilot during the war on Pandora. She fought on the human side of the conflict, far from the Na’vi life Spider would later join.
Death At The Battle Of Ayram Alusìng
According to the comic backstory, the destruction of her gunship during the Battle of Ayram Alusìng killed Paz. Some retellings also connect her death to the larger fighting near the Tree of Souls.
How Spider Was Left An Orphan
With Paz gone and Quaritch absent, Spider grew up orphaned among human survivors on Pandora. That early loss helps explain why he is drawn to the Sullys.
Why Her Identity Matters To Spider’s Story

Paz’s identity gives Spider’s story its emotional weight. It places him between two families, two species, and two moral worlds.
Spider Between The Sullys And The RDA
Spider is human, yet he grew up around the Na’vi way of life. That tension makes him a bridge character, and his mother’s RDA past adds more pressure to his place in Pandora’s world.
Jake Sully And Neytiri’s Complicated Place In His Life
Jake Sully treats Spider with real care, while Neytiri sees him through the pain of the war. In Avatar 2, that mix of trust and fear makes Spider’s role inside the family feel fragile and very personal.
Parallels With Kiri And The Family Theme
Spider and Kiri both show how Avatar: The Way of Water focuses on belonging, birth, and chosen family. Their stories remind you that the saga is not only about battles but also about who gets claimed and who gets to call a place home.
Could Future Films Bring Paz Back Into The Story

Paz is dead in the current canon, so a full return in person is unlikely. Still, Avatar 3 and later Avatar sequels leave room for flashbacks or memory-driven scenes.
Flashback Possibilities In Avatar 3
A brief flashback could show Paz before Spider’s birth or during the war on Pandora. That kind of scene would add context without changing her fate.
How Quaritch’s Memories Could Revisit The Past
Quaritch’s return as a Recom gives the story a strange advantage, since the character still carries the original man’s memories. That opens the door for scenes that revisit Paz through Quaritch’s past, especially if Avatar: The High Ground is used as a guide.
What Fans Should Treat As Theory For Now
At this point, fans can only speculate about any return for Paz.
The franchise will likely use her mainly as backstory. Spider’s choices in Avatar: The Way of Water and Avatar 3 continue to carry the emotional load.