Junjo Romantica: Pure Romance (Japanese: 純情ロマンチカ/ピュア ロマンス, Hepburn: Junjō Romanchika, lit. "Pure-Hearted Romantica") is a Japanese boys love manga series by Shungiku Nakamura. It focuses on four storylines: the main couple, which comprises the bulk of the books, and three other male couples that provide ongoing side stories ("Junjo Egoist", "Junjo Terrorist", and "Junjo Mistake"). It has expanded into several CD-dramas, a manga series running in Asuka Ciel, a light novel series titled "Junai Romantica" running in The Ruby magazine, and a 37-episode anime series.

Shungiku Nakamura has written a spin-off of Junjou Romantica titled Sekai-ichi Hatsukoi (lit. "The World's Greatest First Love") focusing on a shōjo manga editor and his first love, which was also animated by Studio Deen in 2011.