Kelly Rimmer is an Australian author of romance fiction and historical fiction. She has stated that a historical fiction author needs research and daydreaming. She plots her books before she begins to write them.
Rimmer lives in New South Wales, Australia. She owns a bookshop, Collins Booksellers Orange, which she purchased in 2022.
The Warsaw Orphan (2021) was a New York Times bestseller, as was the audiobook of The Things We Cannot Say (Harlequin Audio, 2020).
Several of Rimmer's books have been Apple Books bestsellers: A Mother's Confession (2017), Before I Let You Go (2018), The Things We Cannot Say (2019), and The German Wife (2022).
Truths I Never Told You (2020) and The Warsaw Orphan (2021) were Publishers Weekly bestsellers.
Truths I Never Told You (2020) received a starred review from Publishers Weekly; it said, "RimmerâÂÂs suspenseful narrative will enthrall and move readers".