10 titles- Collected Stories by Fitz-James O'Brien (New York: Boni and Liveright, 1925)
- The Diamond Lens and Other Stories (New York: Charles Scribner's Sons, 1885)
- The Diamond Lens and Other Stories (New York: William Edwin Rudge, 1932)
- The Diamond Lens (Philadelphia, Pennsylvania: Henry Altemus Co, 1909)
- The Fantastic Tales of Fitz-James O'Brien (London: John Calder, 1977)
- Poems and Stories (Boston, Massachusetts: James R Osgood and Company, 1881)
- The Supernatural Tales of Fitz-James O'Brien, Volume One: Macabre Tales (New York: Doubleday, 1988)
- The Supernatural Tales of Fitz-James O'Brien, Volume Two: Dream Stories and Fantasies (New York: Doubleday, 1988)
- What Was It? and Other Stories (London: Ward and Downey, 1889)
- The Wondersmith and Others (Ashcroft, British Columbia: Ash-Tree Press, 2008)