As part of this "project" I'm collecting stories, myths and legends of the origins of fire, there are many out there, and many variations of similar stories within the same cultures and different cultures. Common themes also run through many of the stories, such as fire being hidden away in trees and it can only be released through friction.
I plan to collect as many stories as possible and validate each one. This is my list so far of stories , but I'm sure there are many more out there. I have not yet found any from Celtic traditions.
Crocodile took the fire stick
How the Wongaibon obtained fire
How the Kamilaroi acquired fire
Water rat and fire
... and many more
India - Hindu : Rig Veda (3:9.5), the hero Mātariśvan recovered fire through friction
Judaism - In the Book of Enoch, the fallen angels and Azazel teach early humanity to use tools and fire.
Chinese - Sui Drilling Wood to make fire
Greek - Prometheus stole fire and hid it in a fennel stalk
The San of South Africa believe that Ostrich guarded fire under his wing until a praying mantis stole it.
and many more
Bumba showed the people how to make the firedrill
Indians of the Amazon River basin in - Aboy stole a hot coal from the Jaguar's fire
Legends in the Caroline Islands of the Pacific link fire to Olofat, a mythical trickster hero
Maori\Polynesian - How Maui brought fire to the world
How Coyote Stole Fire
Cherokee - Grandmother Spider
According to some Yukon First Nations people, Crow stole fire from a volcano in the middle of the water.
According to the Creek Indians, Rabbit stole fire from the Weasels.
In Algonquin myth, Rabbit stole fire from an old man and his two daughters.
In Ojibwa myth, Nanabozho the hare stole fire and gave it to humans.
and many more
Norse\Viking - The Theft of Fire by Loki
The Myths of the Origins of Fire by James Frazer contains many stories from around the world including Tanzania,
New Guinea, Indonesia, Malaysia, Madagascar, South America, Central & North America, Pacific/Polynesia, Australia