To be eligible, the stories had to be ones I read for the first time at some point in 2013, and ones that impressed me enough to make a note of them. Then I reviewed the list prior to writing this blog post; any I couldn't really remember and that hadn't stuck with me were discarded.
In general, I've tried to avoid listing any author more than once, but I weakened a few times.
Nina Allen: The Phoeny War (NewCon Press Sampler)
Simon Bestwick: Lex Draconis (Tales Of The Nun & Dragon, Fox Spirit)
Simon Bestwick & Gary McMahon: Thin Men With Yellow Faces (This Is Horror chapbook)
Keith Brooke: Beside The Sea (Memesis, Infinity Plus)
Ramsey Campbell: Holes For Faces (Holes For Faces, Dark Regions Press)
Ramsey Campbell: The Long Way (Holes For Faces, Dark Regions Press)
Mark Chadbourn: Whisper Lane (The British Fantasy Society: A Celebration)
Ted Chiang: Story Of Your Life (Stories Of Your Life And Others)
MR Cosby: Unit 6 (Darker Times)
MR Cosby: In Transit (Darker Times)
Nicole Cushing: The Peculiar Salesgirl (Polluto #10)
Christian A. Dumais: Leave Me The Way I Was Found (Shock Totem #2)
Cate Gardner: Pretty Little Ghouls (Shock Totem #2)
Jessica George: New Town (Impossible Spaces, Hic Dragones)
John Greenwood: Puppyberries (No Monsters Allowed, Dog Horn Publishing)
Shaun Hamilton: The Shuttle (Ill At Ease II, PenMan Press)
Lauren James: Fences (The Side Effects Of The Medication)
Lauren James: The Side Effects Of The Medication (The Side Effects Of The Medication)
Hannah Kate: Great Rates, Central Location (Impossible Spaces, Hic Dragones)
Gary Kilworth: Filming The Making Of The Film Of The Making Of Fitzcarraldo (Infinity Plus Quintet)
BV Larson: Beside Still Waters (For When The Veil Drops, West Pigeon Press)Amelia Mangan: Some Girls Wander By Mistake (No Monsters Allowed, Dog Horn Publishing)
Gary McMahon: Just Another Job (Urban Occult, Anachron Press)
Gary McMahon: The Grotto (NewCon Press Sampler)
Mark Mellon: Asshole Factory (Polluto #10)
Steve Mosby: Fruits (author's website)
Tony Rabig: The Other Iron River (The Other Iron River & Other Stories)
Iain Rowan: The Singing (Supernatural Tales #23)
Christina Scholz: The Lost City Of Emory Winters (The Big Click)
Steve Rasnic Tem: Wheatfield With Crows (Dark World, Tartarus Press)
Lisa Tuttle: Flying To Byzantium (Infinity Plus Quintet)
Stephen Volk: The Arselicker (Anatomy Of Death, Hersham Horror)
Mark West: The Bureau Of Lost Children (Ill At Ease II, PenMan Press)
Leslianne Wilder: Sweepers (Shock Totem #2)
Conrad Williams: The Fox (This Is Horror chapbook)
Jennifer Williams: Spider Daughter Spider (Urban Occult, Anachron Press)