- Midnight in Montmartre
- Midnight On The Double-B
- Midnight Renegade
- Midnight Sun
- Midsummer Melody
- Mierda, otra vez tú
- Mikaela's Story
- Mike's Way Back
- Mil "tequieros"
- Mil campanas
- Milionario al comando
- Millie Vanilla’s Cupcake Café
- Million Dollar Baby
- Million Dollar Blues
- Million Dollar Date
- Millionär gesucht, Liebe gefunden
- Millionäre küsst man (nicht)
- Mills & Boon Stars Collection: Sinful Proposals
- Miluji tě, nenávidím tě
- Mimsey
- Mind Games
- Mine Under the Mistletoe
- Mine Until Moonrise
- Minefields
- Minerva's Match
- Mini Shopaholic
- Mini Shopaholic
- Mini-accro du shopping
- Mint, Love of Thieves
- Minx
- 99% Mine - Mio al 99%
- Mio zio Napoleone
- Miracle
- Miracle on 5th Avenue, Book 3
- Miracles for Nick
- Mirth Defects
- Mis primeras Navidades sin ti
- Misbehaving in Miami
- Misbehaving Under the Mistletoe
- Miscelánea
- Mischief after Midnight
- Mischief at Midnight
- Mischief Under the Mistletoe (A Holiday Romance Boxed Set)
- Mischievously Mine
- Misery Loves Company
- Mismatch
- Mismatched in Manhattan
- Mismatched in Mayhem
- Miss Bliss
- Miss Chance
- Miss Charly
- Miss Darby's Debut - A Regency Romance
- Miss Foster's Folly
- Miss InstaPrincess
- Miss Kane's Christmas
- Miss Mackenzie
- Miss ManKiller
- Miss Misguided
- Miss Prim's Greek Island Fling
- Miss Valentine's Love Emporium
- Missed Kiss
- Missing Lynx
- Mission Delivery
- Mist of the Morning
- Mistaken Identity
- Mistaken Identity Box Set
- Mistakenly Married
- Mistakenly Matched
- Mistakes, Fried Chicken and Unlucky Mermen
- Misteltoe & Molly
- Mistelzweigtanz
- Mister Dos: A Short Story Series
- Mister Hockey
- Mister Mom (Hollywood Hearts Book 1)
- Mister Naughty
- Mister Uno: A Short Story Series