Harlequin
- Website: https://www.harlequin.com/
- Founded: 1948
- Accepts unagented submissions: Yes
- Size: Large (Division of HarperCollins Publishers)
- Location: Toronto, Canada and New York, USA
- Genres: Romance, Fiction, Thrillers, YA, Literary Fiction, Narrative Nonfiction
- Notes: Publishes over 100 titles monthly. Actively seeking diverse voices with #RomanceIncludesYou initiative. Different imprints have specific word count requirements (50,000-75,000 words).
- Notes: Publishes over 100 titles monthly in print and digital formats. Founded in 1948, celebrating its 75th anniversary in 2024. Actively seeking diverse voices with #RomanceIncludesYou initiative. Submissions accepted through their website for Harlequin Series and Carina Press imprints. Different word count requirements for each imprint (ranging from 50,000-75,000 words). Offers Romance Includes You Mentorship program.