- Midnight in Montmartre
- MIDNIGHT KISS
- Midnight On The Double-B
- Midnight Pleasures
- MIDNIGHT REMEMBERED
- Midnight Renegade
- MIDNIGHT SONS AND DAUGHTERS
- Midnight Special
- Midnight Sun
- Midnight Sun's Magic
- MIDNIGHT TRAIN FROM GEORGIA
- MIDNIGHT WEDDING
- Midnight, Moonlight & Miracles
- Midsummer Melody
- Midwife Cover
- Midwife's Mistletoe Baby
- Mierda, otra vez tú
- Mijn hart gaat door
- Mikaela's Story
- Mike's Way Back
- Mike, Mike & Me
- Mil "tequieros"
- Mil campanas
- Milionario al comando
- Military Man
- Millie Vanilla’s Cupcake Café
- Million Dollar Baby
- Million Dollar Blues
- Million Dollar Date
- MILLION DOLLAR MARRIAGE
- MILLION DOLLAR STUD
- Million-Dollar Amnesia Scandal
- MILLION-DOLLAR BRIDE
- Millionaire Boss
- Millionaire Cop & Mom-To-Be
- Millionaire M.D.
- MILLIONAIRE ON HER DOORSTEP
- Millionaire Playboy, Maverick Heiress
- Millionaire's Calculated Baby Bid
- MILLIONAIRE'S CHRISTMAS MIRACLE
- Millions to Spare
- Millionär gesucht, Liebe gefunden
- Millionäre küsst man (nicht)
- Mills & Boon Stars Collection: Sinful Proposals
- Miluji tě, nenávidím tě
- Mimsey
- Mind Games
- MIND OVER MARRIAGE
- Mine at Midnight
- Mine Under the Mistletoe
- Mine Until Moonrise
- Mine Until Morning
- Minefields
- Minerva's Match
- Mini Shopaholic
- Mini-accro du shopping
- Mint, Love of Thieves
- Minute by Minute
- Minx
- 99% Mine - Mio al 99%
- Mio zio Napoleone
- Miracle
- Miracle at Colts Run Cross
- Miracle on 5th Avenue
- Miracle on 5th Avenue, Book 3
- Miracle Under the Mistletoe
- Miracle: Twin Babies
- Miracles for Nick
- Mirth Defects
- Mis primeras Navidades sin ti
- Misbehaving in Miami
- Misbehaving Under the Mistletoe
- Miscelánea
- Mischief
- Mischief after Midnight
- Mischief at Midnight
- Mischief Under the Mistletoe (A Holiday Romance Boxed Set)
- Mischievously Mine
- Misery Loves Company
- Misfit Father
- Mismatch
- Mismatched in Manhattan
- Mismatched in Mayhem
- MISMATCHED MOMMY?
- Miss Bliss
- Miss Cameron's Fall from Grace
- Miss Chance
- Miss Charlotte Surrenders
- Miss Charly
- Miss Darby's Debut - A Regency Romance
- Miss Foster's Folly
- Miss InstaPrincess
- Miss Kane's Christmas
- Miss Lattimore's Letter
- Miss Liz's Passion
- MISS LIZZY'S LEGACY
- Miss Mackenzie
- Miss ManKiller
- Miss Maple and the Playboy
- Miss Misguided
- Miss Prim and the Billionaire
- Miss Prim and the Maverick Millionaire
- Miss Prim's Greek Island Fling
- Miss Valentine's Love Emporium
- Miss Verey's Proposal
- Miss White and the Seventh Heir
- Missed Kiss
- Missing
- Missing Lynx
- MISSING: ONE BRIDE
- Mission Delivery
- Mission: Make-Over
- MISSION: MOTHERHOOD
- Mission: Seduction
- Mist of the Morning
- MISTAKEN BRIDE
- Mistaken for a Mistress
- Mistaken Identity
- Mistaken Identity Box Set
- Mistaken Mistress
- Mistakenly Married
- Mistakenly Matched
- Mistakes, Fried Chicken and Unlucky Mermen
- Misteltoe & Molly
- Mistelzweigtanz
- MISTER CHRISTMAS
- Mister Dos: A Short Story Series
- Mister Hockey
- Mister Mom (Hollywood Hearts Book 1)
- Mister Naughty
- Mister Uno: A Short Story Series
- Mistletoe and a Man for Christmas