Nina (ニナ) is a Japanese-American artist under JYP Entertainment. She is a member of the Japanese-Korean pop girl group NiziU.
- Stage Name: Nina (ニナ)
- English Name: Nina Hillman
- Japanese Name: Makino Nina (牧野仁菜)
- Birthdate: February 27, 2005
- Birthplace: Seattle, Washington, USA
- Blood Type: O
- Height: 164cm
- Hobbies: Listening to music, exercising
- Specialties: Tricks using her mouth, being spoiled
-  Shiba Park (柴公園)
-  Chi Tomodachi (血ぃともだち)
- In 2017, she passed an audition by Amuse Inc.
- She can also speak French.
- Her mother is Japanese.