- Name: Kobayashi Ran (小林蘭)
- Nickname: Ranchan (らんちゃん), Rantan (らんたん)
- Birthdate: October 7, 2003
- Birthplace: Osaka, Japan
- Blood Type: O
- Height: 151cm
- Bands / Groups:
- Originally a member of AKB48 Kenkyuusei, a candidate for the 3rd AKB48 Group Draft that was drafted by Team K in the fourth round, she was promoted to Team K on July 27, 2019.
- Her first choice as a draft member was AKB48.
- She likes to talk with other people and has long eyelashes, but she worries when buying thing.
- Her hobbies include human observation.
- Her special talent is rock dance.
- She admires Sashihara Rino and Matsuoka Hana.