The Queen Mother of the West, known by various local names, is a mother goddess in Chinese religion and mythology, also worshipped later in neighbouring countries. She is attested from ancient times.

The first historical information on her can be traced back to Shang dynasty oracle bone inscriptions that record sacrifices to a "Western Mother". Even though these inscriptions illustrate that she predates organized Taoism, she is most often associated with Taoism. The growing popularity of the Queen Mother of the West, as well as the beliefs that she was the dispenser of prosperity, longevity, and eternal bliss, took place during Han dynasty, in the 2nd century BCE, when the northern and western parts of China became more accessible through the opening of the Silk Road.

Queen Mother of the West is a calque of Xiwangmu in Chinese sources, Seiōbo in Japan, Seowangmo in Korea, and Tây Vương Mẫu in Vietnam. She has numerous titles, one being Yaochi Jinmu (瑤池金母), the "Golden Mother of the Jade Pond (瑤池)" (also translated "Turquoise Pond"). She is also known in contemporary sources as the Lady Queen Mother.

In Chinese salvationist religions, she is believed to be the same being as their main deity, Wusheng Laomu (Chinese: 無生老母; lit. 'birthless old mother'), also known as Wujimu (無極母; lit. 'infinite mother'). The title, Wujimu, signifies the absolute principle of reality, or the creational origin of all things.

Tang writers called her "Golden Mother the First Ruler", the "Golden Mother of Tortoise Mountain", "She of the Nine Numina and the Grand Marvel", and the "Perfected Marvel of the Western Florescence and Ultimate Worthy of the Cavernous Darkness". Commoners and poets of the era referred to her more simply as the "Queen Mother", the "Divine Mother", or simply "Nanny" (Amah).

The Queen Mother of the West is most often depicted holding court within her palace on the mythological Mount Kunlun, usually supposed to be in western China (a modern Mount Kunlun is named after this). Her palace is believed to be a perfect and complete paradise, where it was used as a meeting place for the deities and a cosmic pillar where communications between deities and humans were possible. At her palace she was surrounded by a female retinue of prominent goddesses and spiritual attendants. One of her symbols is the Big Dipper.

Although not definite there are many beliefs that her garden had a special orchard of longevity peaches which would ripen once every three thousand years, others believe though that her court on Mount Kunlun was nearby to the orchard of the Peaches of Immortality. No matter where the peaches were located, the Queen Mother of the West is widely known for serving peaches to her guests, which would then make them immortal. She normally wears a distinctive headdress with the Peaches of Immortality suspended from it.

Flourishing parasols, we reach the chronograms' extremity;
Riding on the mist, I wander to Lofty Whirlwind Peak.
The Lady of the Supreme Primordial descends through jade interior doors;
The Queen Mother opens her Blue-gem Palace.
Celestial people—What a Crowd!
A lofty meeting inside the Cyan Audience Hall.
Arrayed Attendants perform Cloud Songs;
Realized intonations fill the Grand Empty Space.
Every thousand years, her purple crabapple ripens;
Every four kalpas, her numinous melon produces abundantly.
This music differs from that at the feast in the wilderness—
So convivial, and certainly infinite.