The Sword of Welleran and Other Stories is the third book by Anglo-Irish fantasy writer Lord Dunsany, considered a major influence on the work of J. R. R. Tolkien, H. P. Lovecraft, Ursula K. Le Guin, and others.

One of the stories, "The Fortress Unvanquishable, Save For Sacnoth", was afterwards (1910) published by itself as a separate book, a now very-rare "Art-and-Craft"-style limited edition.

The Irish Times review described Dunsany's stories as "baffling", but called his style beautiful and his imagination strange but "captivating".

[1] The Sword of Welleran and Other Stories marked the end of Dunsany's writing about Pegāna and the beginning of a new phase of his career, in which he wrote heroic fantasies in a more modern style.

[3][4] Another important breakthrough was that Dunsany was writing short stories; heroic fantasy's forerunners were usually lengthy works.