S. D. Smith is an American author best known for his Green Lantern series of fantasy adventure stories about brave rabbits fighting for goodness, hope, and justice. His books have become a huge hit with children and families in the United States and abroad.

Born on February 11, 1977, in West Virginia, where he still lives with his wife and four children, he got the idea for his first book, The Green Charcoal, from stories he told his children.

S. D. Smith is the founder of the creative platform Story Warren, which supports family reading, imagination development, and Christian values.