Spider’s mom does not appear in Avatar: The Way of Water, but the canon provides an answer.
The movies keep her offscreen, while the expanded Avatar lore names her as Paz Socorro, a former RDA pilot connected to Quaritch and Spider’s early family history.

You can answer the question “do we ever see Spider’s mom” with yes, if you look at the wider canon, but not the main film.
In Avatar: The Way of Water, Spider’s background plays an important role, especially his bond with the Sully family and his conflict with Quaritch.
The Short Answer From Canon

Spider’s mother is Paz Socorro, and the canon answer comes from Avatar comics.
If you only watch Avatar 2, you never see her face or hear her name on screen.
Paz Socorro Is Spider’s Mother
ScreenRant’s explanation of Spider’s mother in Avatar: The Way of Water states that Paz Socorro is Spider’s mom and Miles Quaritch is his biological father.
She served as a Scorpion pilot for the RDA, and Spider was born on Pandora before she died.
His birth name is Miles, which connects him even more closely to Quaritch.
Why The Movie Doesn’t Show Her Directly
The movie focuses on Spider’s life with Jake Sully, Neytiri, and the Sully family instead of his birth parents.
James Cameron chose not to center his mother’s identity in the film.
The story leaves space for the comics and future sequels to add more details.
This approach keeps the focus on Spider’s emotional conflict rather than a character who died before the main events.
Where Her Story Is Revealed

You can find Paz Socorro’s backstory in the expanded Avatar material, especially the prequel comics.
Those stories connect her to Quaritch, the RDA, and the events that shaped Spider before Avatar 2.
Avatar: The High Ground And The Avatar Comics
The graphic novel series Avatar: The High Ground acts as a direct prequel to Avatar: The Way of Water, as noted by Mashable.
That’s where Spider’s mother is identified and where her role in the story becomes clear.
The comics explain that Paz Socorro and Quaritch had a relationship, which led to Spider’s birth.
They show that she died during the conflict at the end of the first film’s era.
How Dark Horse Expanded James Cameron’s Sequel Plans
James Cameron’s original sequel ideas became comics with Dark Horse, which preserved story details that did not make it into the film.
This allowed the wider Avatar canon to explore character history in more depth.
Through those comics, Avatar lore adds context to Spider’s place in Avatar: The Way of Water and beyond.
It also shows how the franchise uses print stories to support the movie timeline.
What Happened To Paz Socorro

Paz Socorro’s story connects directly to the RDA conflict on Pandora and the final battle against the Na’vi.
Her brief role explains why Spider grows up without her.
Her RDA Role Before The Battle
Paz worked as a human pilot with Quaritch and served the RDA.
As a human on Pandora in military service, she took part in the attack on the Na’vi.
That puts her near the center of the RDA’s push on Pandora, alongside Miles Quaritch and Stephen Lang’s version of Quaritch.
How She Dies In The Last Great Battle
Paz dies during the last great battle in the first film’s era, when the Na’vi fight back against the RDA.
She dies in the assault on the Tree of Souls, which leaves Spider to grow up with other humans on Pandora.
That loss shapes Spider’s life.
It helps explain why he reaches for family wherever he can, especially with the Sully family.
Why It Matters For Spider’s Future

Spider’s mother matters as part of his identity.
Her death sets up the emotional tension between Quaritch, Jake Sully, Neytiri, and the Sully family.
Spider Between Quaritch And The Sully Family
Spider feels pulled between two worlds, and that tension drives much of Avatar: The Way of Water.
He has a bond with the Sullys, yet his biological tie to Quaritch keeps changing what family means to him.
That conflict gives Spider a painful choice: stay close to the people who raised him, or face the father he never truly knew.
It also makes his story feel bigger than a simple side plot.
Neytiri, Kiri, And Avatar 3 Possibilities
Neytiri feels angry toward Spider, which adds more pressure after the events involving Quaritch and Spider.
Sigourney Weaver’s Kiri opens the door for more emotional links between human and Na’vi characters in Avatar 3.
Spider’s mother may stay offscreen, but her absence still shapes the next Avatar sequel.
If the story returns to her through flashbacks or deeper Quaritch history, it could give you more insight into Spider’s place on Pandora and what he may choose next.