RB Kelly is a science fiction author and film theorist.

​Her debut novel, The Edge of Heaven, is published by NewCon Press and was shortlisted for the 2021 Arthur C Clarke Award. Her short stories can be found in publications from around the world, including The Best of British Science Fiction, Aurealis, and Andromeda Spaceways Magazine. She has a PhD in film theory and her doctoral thesis, Mark Antony And Popular Culture, was published by IB Tauris in 2014. She lives with her husband and children in Northern Ireland.

She is represented by John Jarrold.

With Robert JE Simpson, she is the Co-Founder and Co-Programmer of CinePunked: Interactive Discussion for Film Lovers.​​