A is for Agatha (unless she's under "C.") These are the cozy mystery book authors beginning with "A." I have added a few authors who write nonfiction, and also a few authors who write "non-cozy" books. 

You might be surprised to see Steve Allen included on this list. Yes, he's THE STEVE ALLEN who hosted the Tonight Show before Jay Leno, and even before Johnny Carson! He is probably better known for his non-mystery books, and who can forget his piano playing, song-writing (off the cuff) routines? 

Jeff Abbott    Mystery Suspense... Has MA from Rice

Pearl Abraham   Although she is not a mystery author, I loved one of her books....

Peter Abrahams   Not Cozy... I absolutely love to find authors (especially mystery authors!) who are really successful authors, and who then decide to write mysteries for children and/or young adults. Abrahams is one of those authors. 

Suzanne Adair   Good news for history-mystery lovers! Adair is a new author who writes a series set  during the American Revolution.

Alina Adams  Figure Skating Cozy... Adams was a researcher for ice skating television shows before becoming a mystery author.

Deborah Adams   the Jesus Creek series

Lydia Adamson   Three series: a cat-sitter, a librarian, & a veterinarian

Gregory Ahlgren   My husband read the only book I have found by this author and enjoyed it so much that he recommended it to me.

Catherine Aird   English Cozy featuring the department head of the CID.

Susan Wittig Albert   Albert writes two series, one features an herbalist (the China Bayles series) and she also writes the Beatrix Potter cozy series. Susan and her husband write a mystery series set during the Victorian era using the pseudonym "Robin Paige."

Peter Alding  (aka Roderic Jeffries & Jeffrey Ashford) (Not Cozy) The C. I. D. Room Mystery Series with Constable Kerr...

Bruce Alexander     aka Bruce Cook……Alexander wrote a series of historical mysteries that feature an 18^th century blind magistrate in London.

Barbara Allan   Allan is the husband/wife writing team comprised of Barbara and Max Allan Collins. Together, they write the Trash n' Treasures Mystery Series.

Conrad Allen    aka Edward Marston and Keith Miles... Not necessarily cozies, lots of series...set mostly in England

Michael Derek Allen    I liked the first in the Spence Series a lot. Haven't read the others....yet. 

Steve Allen   Based on Steve Allen, the comedian, and his wife, actress Jayne Meadows...as crime solvers!

Margery Allingham    Cozy from England...  Albert Campion series, which features a very upper-crust sleuth...

Madelyn Alt    Alt’s series is set in Stony Mill, Indiana, and involves both an antique shop and a witch!

Donna Andrews    One of her series involves a blacksmith theme (the Meg Lanslow series)...

Mary Kay Andrews   aka Kathy Hogan Trocheck... I haven't tried her Weezie & BeBe series, but now that I am aware of it, I am going to!  I love Trochek's Julia Callahan Garrity series.

Sarah Andrews  Andrews, being a geologist herself, has two mystery series which both feature geologists/sleuths...

Jennifer Apodaca    Apodaca's books are mysteries with a whole lot of romance! She calls them "dangerously romantic"....

Jeffrey Archer   Not cozy... His personal life would make a great novel!

Margot Arnold   British Cozy that features an anthropologist and an archaeologist in Cambridge.

Suzanne Arruda    Arruda wanted to use her Master's degree (that emphasizes ecology) and her enjoyment for both animals and the outdoors (she managed to work as a zoo keeper while in college!) when writing her mystery series. What better setting than Africa for her main character Jade del Cameron... a very adventurous sleuth!

Jeffrey Ashford   (aka Roderic Jeffries & Peter Alding) (Not Cozy) As Ashford he has stand-alones...

Isaac Asimov   Asimov's family owned candy shops while he was growing up, which sold science fiction magazines, which is where he developed his love for all things science fiction. But, he also wrote mysteries... along with many.... and I mean "many" other accomplishments in his life.

Nancy Atherton    When her "Aunt"  Dimity leaves her a Cotswold cottage, little does Lori know that the cottage includes her aunt's presence...

Sarah Atwell   Degrees in Art History and Fine Arts paved the way for Atwell to eventually write the Glassblowing Mystery Series. She not only enjoys the beauty of blown glass but apparently also has "mastered" the art...

Margaret Atwood   I've read a couple of her books, and find them quirky, very different....

Lori Avocato   Who better than a registered nurse (and Sister's in Crime member) to write a mystery series about an ex-registered nurse who invetigates medical fraud?

"B" Authors