Hiyokoi (Japanese: ひよ恋) is a shōjo manga series written and illustrated by Moe Yukimaru.

It is serialized in Shueisha's monthly shōjo manga magazine Ribon, and had been published into fourteen tankōbon volumes.

After being in an accident that caused her bones to stop growing, she starts going to high school as a freshman, along with her best friend Ritsuka.

After an accident where her panties were shown to the class, she is consoled by Yuushin and starts liking him, eventually growing closer to him.

On October 2, 2010 a DVD containing the Hiyokoi OVA and a Yumeiro Patissiere special was released along with the November issue of Ribon.