The arch-Nature Spirit of Earth... or whatever planet is the story's setting. May or may not have a humanoid form (substitute "humanoid" with whatever species equivalent in non-terrestrial settings), but if it is, it's Always Female due to Mother Nature, Father Science. Tends to dress in a Garden Garment and leave a trail of flowers where their Fertile Feet tread.
Of course, if you actually look at old cultures Mother Nature tends to occur mainly in fertile places, and infertile parts of the world often had male Earth deities. Egypt had Geb, for instance, and the Norse had Ymir and Frey.
Often a bona fide Physical God, if not outright one of the Powers That Be. Actually pissing her off is likely to result in Gaia's Vengeance (also compare Nature Is Not a Toy), while making her sad can result in Gaia's Lament. If merely human but with a gift for gardening and horticulture, an Earth Mother.
Contrast Nature Is Not Nice, when Mother Nature isn't exactly an ideal mother.
- Ads for Always feminine-hygiene products have Mother Nature as a woman in a green tweed skirtsuit approaching young women with a red "gift"... and usually getting her ass kicked as the voiceover says "Outsmart Mother Nature."
- There was a commercial campaign for Chiffon margarine in the 1970s that had a Mother Nature (Dena Dietrich). "It's not nice to fool Mother Nature!" *thunderclap*
- Gaea from Marvel Comics.
- Dilbert has met her. She's a jerk.
- In Shaman's Tears, Joshua Brand is empowered by Wakan Takan; the "Great Spirit" of the Sioux. It usually manifests as sexy Native American woman.
- Arawn: After everything is over, Siahm goes to live in the forest where she is protected from Arawn's wrath by the goddess of nature, fertility, and women. She also resurrects Kern as a forest god each time Arawn tries to kill him in revenge.
- Massively Multiplayer Crossover fic Blood and Revolution has a genderflpped version: the "earthkami" - Anthropomorphic Personification of the Earth itself - is Darien Shields (Prince Endymion) from Sailor Moon. He's explicitly refered to as the Egyptian Geb as well, and implied to be all earth gods/goddesses from human mythologies.
- Terra, the Mother Goddess of the Mythology 101 Cycle, who is the Ethical Slut version.
- Mother Nature in Empath: The Luckiest Smurf is basically the same as the cartoon show version, though her name is now invoked in prayers by the Smurfs for blessings and such. Just don't ask her what she does about gay people.
- Her Mirror Universe counterpart, though, is more of a sex goddess that its Smurfs honor with prayers for doing whatever it is they want to do, and with whomever they want.
- Pony POV:
- Mother Deer is an example of this.
- Though the title actually belongs to Princess Gaia, Fluttershy's future alicorn self. Mother Deer has been keeping stewardship of one of her duties till Gaia is around to cover it.
- Empress Natellusia or Lusie in the Return of the Guardians trilogy. She looks like an Ambiguously Brown little girl with an Unlimited Wardrobe of immaculate white clothes, and her only power is to communicate with all forms of life, but since the Earth wants to do Lusie's bidding, the kid commands plant life, animals, weather and Ether, the sparkly building blocks of creation. Like Mother Nature in Joyce's original books, she is also Pitch Black's long-lost daughter.
- Waiting for Rain - Kida & Pocahontas is a fanvid where Kida is a Physical God and the embodiment of nature. Pocahontas meets her and befriends her, but Kida ends up kidnapped by colonizers.
- Mother Nature (voiced by Phyllis Diller) appears in the Filmation Snow White and the Seven Dwarfs sequel Happily Ever After.
- Mother Nature is a character in the Christmas Special The Year Without a Santa Claus. she's the mother of the Miser Brothers (Snow Miser and Heat Miser), the two beings who control the Earth's temperatures and weather. While she's hoisted as The Dreaded, she's revealed to be a pleasant, grandmotherly Reasonable Authority Figure...though the fact that she can scare both of her sons into listening to her probably makes her reputation somewhat warranted.
- Moana has Te FiTi, the Goddess of Life who created every island on Earth. She is presented as a giant woman with green flora covering her body. When she goes to sleep she becomes the Mother Island.
- Yavanna in The Silmarillion.
- In Simon R. Green's novel Drinking Midnight Wine the character of Gale, AKA Gaia, turns out to be the Anthropomorphic Personification of nature and earth.
- The various Ladies from the Repairman Jack novels.
- Old Mother Nature in Thornton W. Burgess's animal stories set in the Green Meadow, the Green Forest, the Laughing Brook, the Smiling Pool, etc. Catchphrase: "You can't fool Mother Nature, and it's of no use to try."
- In The Dresden Files, there are two which fulfill this: Queen Mother Summer and Queen Mother Winter. They are the oldest and strongest fairies of their courts. Each has ultimate domain over her domain but generally remain neutral to any scuffle their daughters Queen Titania of Summer and Queen Mab of Winter or the lower fae start.
- Gaia in Piers Anthony's Incarnations of Immortality series.
- The Goddess in Dora Wilk Series is apparently connected to Earth and is worshiped as the supreme deity of magicals (even though they have many, many, many lesser gods). It's apparently a counterbalance of heaven and hell's more mystical God, although the two seem to be on good terms.
- The Sleeping Goddess Burn from the Malazan Book of the Fallen is very literally the world the characters walk on and apropriately enough referred to as the 'Mother Goddess'.
- In The Traitor Son Cycle, the Wild creatures and the Outwallers, as well as some of the hillmen, worship goddess Tara, who's the personification of nature and the Wild. In truth, Tar is a dragoness, who, while gifted with some Green Thumb powers, isn't really Mother Earth.
- The Stormlight Archive: Cultivation, one of the sixteen Shards of Adonalsium, fits quite well with this trope. The spren call her "Mother," as do the few humans who get a chance to meet her. While she spends most of her time hiding in her sacred valley and watching over the plants there, she does occasionally affect the rest of the world. In Oathbringer, it is revealed that she gave Dalinar his boon (instead of her daughter the Nightwatcher), which ultimately led to Dalinar growing into a person strong enough to resist Odium.
Cultivation: I control all things that can be grown, nurtured. That includes the thorns.
- Dogs and wolves in Survivors believe in the Earth-Dog. She is a giant black-furred and mastiff-like dog that lives in the earth. She is treated much like Mother Nature, but there are also other Spirit Dogs that rule over things like the ocean. The Earth-Dog causes earthquakes and claims bodies after death. Dogs often bury their prey as offerings to her.
- Gaia, the mother of the Titans and Greek gods. Decidedly more of the vengeful persuasion, though usually it's because some god or titan gave her cause first.
- The Poetic Edda has Gerðr, a giantess courted by Frey with the aid of Skirnir. The story is part of a fertility ritual in which Gerðr represents Earth, Frey fertility, and Skirnir sunlight.
- Atabey in Taíno Mythology is the goddess of fresh water and fertility, who also represents the spirit of earth.
- Gender flipped in Egyptian Mythology with Geb the Earth Father and Nut the Sky Mother.
- Final Fantasy VII's Planet, and its supposed Anthropomorphic Personification, Minerva, from the Compilation sub-franchise.
- In Pajama Sam, Mother Nature is the president of World Wide Weather.
- Animebona is the spirit of the eponymous planet in Albion, and the entity representing magic in Dji-Kantos philosophy.
- Kid Icarus: Uprising introduces Viridi, who fills this role. However, she loathes Mankind, and due to the results of Hades' Evil Plan the chapter prior to her debut, she decides they don't deserve to live anymore.
- Shin Megami Tensei: Strange Journey has Mem Aleph the mother of everything that has existed on earth. Including the human soul and the demons/old gods. She unleashes the Schwarzwelt upon the earth because man has polluted the earth so badly that in order to save it she will wipe out mankind like she did the sentient lifeforms and civilizations that existed before humanity.
- The Earthmother of the Desktop Dungeons pantheon.
- Flight Rising has the Gladekeeper, deity of the Nature flight.
- The Mother Goddess of the Overlord games is the deity of the Elves and is a nature goddess of sorts as well as a standard Goddess of Good. Her priestesses gorge themselves to shape themselves in her image.
- Auriga is the narrator and planetary setting of Endless Legend. She simultaneously sees hope and despair in the life and civilizations dwelling on her, because she knows she is slowly dying, turning into an icy wasteland.
- A Very Long Rope to the Top of the Sky: The Lydian religion has God with two children; one of them, "The Mother", gave birth to the world, while the other, "The Eater", was a lazy hedonist who only devoured his sister's creations.
- Invoked in Horizon Zero Dawn by the head of the Zero Dawn project, Elizabet Sobek. In order to save the world from a Robot Uprising or rather, re-create the biosphere from scratch after the unstoppable Faro Plague finished consuming everything bigger than a bacteria. she built GAIA, an artificial intelligence with a love for living things and the infrastructure needed to manage the ecosystem on a global scale. She even designed GAIA's holographic avatar to fit this trope, presenting as an African woman in a toga.
- Slightly Damned has Mother Gaia as basically their religion's equivalent of God.
- Deities has Mother Nature as one of the main characters
- Unsounded has Mother Yerta, the eternally pregnant goddess who nurtures the world in her womb. Her iconography is also prominently featured in tombs, since Gefendur scripture holds that human bodies are gifts to be returned to Yerta upon death. Also in one brothel, for people who want to be a bit more personal in their devotions.
- Gaia, the spirit of the Earth, from Captain Planet.
- A matronly Mother Nature is a recurring character on The Smurfs.
- It was Mother Nature who gave SuperTed his powers.
- Every year in The Fairly OddParents!, the fairies and anti-fairies have a baking contest judged by Mother Nature. The point of the contest is to decide whether the fairies or the anti-fairies can have godchildren (the fairies win every year).