Onoda Karin was born on January 23, 2008 in Tokyo, Japan.
Onoda has been a child model as early as 2009.
In 2016, Onoda joined the theater troupe Hanayashiki Shoujo Kageki.
Onoda participated in Hello! Project "ONLY YOU" Audition, but failed.
On November 1, it was announced that Onoda had joined Hello Pro Kenshuusei alongside Saito Madoka and Kusunoki Mei. They were introduced in the Hello! Project Kenshuusei Happyoukai 2018 12gatsu ~Mikan~ show on December 2.
On February 5, she participated in a fanclub event, titled Hello Pro Kenshuusei Special Event in Nagoya ~Hajimemashite! 6~, at Midland Square Cinema 2 alongside Kubota Nanami, Matsubara Yulia, and Saito Madoka.
From July 19 to July 29, Onoda performed in the stage play Daihi [story B Daihi 37m] by the theater troupe Innocent Sphere.
On July 26, Onoda won the judge's character award at the Hello! Project Kenshuusei Happyoukai 2020 ~Natsu no Koukai Jitsuryoku Shindan Test~ event for her performance of "Hitori de Ikiraresou" tte Sore tte Nee, Homete Iru no?".
When Onoda joined Hello Pro Kenshuusei, she was in her fourth year of elementary school. As of April 2020, Onoda is currently in her first year of middle school.
The following list are notable friendships Onoda Karin has acquired:
Here is a list of nicknames that was used to refer to Onoda Karin:
- Karin-chan (かりんちゃん): One of her nicknames as a Hello Pro Kenshuusei member.
- Onoda-chan (おのだちゃん): One of her nicknames as a Hello Pro Kenshuusei member.
- Name: Onoda Karin (小野田華凛)
- Nicknames: Karin-chan (かりんちゃん), Onoda-chan (おのだちゃん)
- Former Stage Name: Karin (華凜)
- Birthdate: January 23, 2008
- Birthplace: Tokyo, Japan
- Blood Type: Unknown
- Height: 140cm
- Western Zodiac: Aquarius
- Eastern Zodiac: Pig (Boar in Japan)
- Hello! Project Status:
- 2018-11-01: Hello Pro Kenshuusei member
- UP-FRONT PROMOTION Status:
- 2018-11-01: Member
- Hello! Project Groups:
- Hello Pro Kenshuusei (2018-present)
- Special Skill: Swimming, Jump rope, Unicycle, Tap Dance
- Hobbies: Guitar, Collecting cute stationary
- Favorite Music Genre: J-pop
- Favorite Food: Cucumber
- Favorite Sport: Swimming
- Favorite School Subject: Math
- Charm Point: Eyes that get thin as she laughs
- Favorite Color: Purple, Pink
- Motto: "Ichiisenshi" (一意専心; With all one's heart)
- Favorite Hello! Project song: Ashita Tenki ni Naare
- Looks Up To: Miyazaki Yuka
-  "Belle Maison" Mama & Baby Catalog (「ベルメゾン」ママ＆ベビーカタログ)
-  "Studio Alice" 753 Advertisement (「スタジオアリス」七五三広告)
-  "Tinker Bell" Autumn-Winter Catalog (「ティンカーベル」秋冬カタログ)
-  Pilot Ink "Mel-chan Ofuro ni Hairou Set" (パイロットインキ「メルちゃんおふろにはいろうセット」)
-  Pilot Ink "Mel-chan Hirogete Asoberu Closet" (パイロットインキ「メルちゃんひろげてあそべるクローゼット」)
-  Stereo Sound "Kawaii wo Share Suru Shashinjutsu" (ステレオサウンド「カワイイをシェアする写真術」)
-  Kuraray "Randoseru" Advertisement (クラレ「ランドセル」広告)
-  Tokyo Gangu Ningyou Kyoudou Kumiai "Mago no Hi" "Christmas" Advertisement (東京玩具人形協同組合「孫の日」「クリスマス」広告)
-  Daihi [story B Daihi 37m] (大悲［story B 大悲 37m］)
- [2020–] Hello Dream.
-  Bandai "Anpanman Colour Pad" (バンダイ「アンパンマンカラーパッド」)
- She loves taking long baths and playing her electric guitar.
- Her favorite BEYOOOOONDS member is Ichioka Reina.
- She likes to eat chocolate ice cream.
- She has the same last name as Tsubaki Factory member Onoda Saori.
- Gallery:Onoda Karin
- List:Onoda Karin Discography Featured In
- List:Onoda Karin Concert & Event Appearances
- ↑ 1.0 1.1 Oda Sakura. "高木さんバースデー！小田さくら" (in Japanese). Morning Musume Tenki Gumi Official Blog. 2019-04-19.
- ↑ 2.0 2.1 "ハロプロ研修生に新メンバー加入のお知らせ" (in Japanese). Hello! Project. 2018-11-01.
- ↑ 3.0 3.1 3.2 "少女歌劇団 団員紹介" (in Japanese). Hanayashiki. (Archived)
- ↑ 4.0 4.1 "少女歌劇団" (in Japanese). Hanayashiki. (Archived)
- ↑ "舞台「大悲」ハロプロ研修生 小野田華凜出演！" (in Japanese). Hello! Project. 2019-04-04. (Archived)
- ↑ http://www.helloproject.com/news/12197/
- ↑ Hello Dream. Episode 8.
- ↑ Hello! Project Kenshuusei Happyoukai 2018 12gatsu ~Mikan~ MC.
- ↑ https://twitter.com/kaosiki/status/1092792371220303872