- Birth Name: Nakanishi Rina (中西里菜)
- Nickname: Rinatin (りなてぃん)
- Stage Name: Yamaguchi Rino
- Date of Birth: June 26, 1988
- Place of Birth: Oita Prefecture, Japan
- Star Sign: Cancer
- Blood Type: A
- Height: 156cm
- Bands / Groups:
- Single A-sides Participated In
- Sakura no Hanabiratachi
- Skirt, Hirari
- Seifuku ga Jama wo Suru
- Keibetsu Shiteita Aijou
- Boku no Taiyou
- Baby! Baby! Baby!
- Stage Units
- Team A 1st Stage: Skirt, Hirari (2nd Unit)
- Team A 1st Stage: Classmate (1st Unit)
- Team A 2nd Stage: Nageki no Figure
- Team A 2nd Stage: Garasu no I LOVE YOU
- Team A 2nd Stage: Leo no Kakumei
- Team A 3rd Stage: Seifuku ga Jama wo Suru
- Team A 4th Stage: Kikyou
- Himawari-gumi 1st Stage: Boku to JULIET to JET COASTER
- Collects earrings and perfume.
- If she were to become another member, she would be either Ohe Tomomi or Minegishi Minami.
- Recommended AKB48 songs are Classmate and Sakura no Hanabiratachi.
- If she were to compare herself to a colour, it would be pink. However, Hoshino Michiru says that she would be white.
- The most important things in the world to her are family and friends.
- The first thing she wants to do when she becomes an adult is to drink alcohol with Oshima Mai.
- Has a weakness for rice.
- She loves Sanrio's "Charmy Kitty".
- Person she respects the most is her mother, because she is responsible and good at cooking.
- Likes singing songs by Matsuura Aya during karaoke.
- Loves Starbucks, and has a poster from Starbucks in her room.
- As a young girl, her dream was to perform onstage at Canal City (which she has done)
- Usually wears a T-shirt and long skirt
- Says the source of her energy is chocolate and vitamin supplements
- Hobbies: Cooking
- Favourite artist: Matsuura Aya
- Favourite movie: Peter Pan.
- Favourite colours: Pink, black.
- Favourite flower: Tulips.
- Charm point: Dimples.
- Audition song: Koizumi Kyoko - Anata ni Aete Yokatta