- Name: Miyoshi Erika (三好絵梨香)
- Birthday: November 8, 1984
- Birthplace: Hokkaido, Japan
- Blood type: B
- Height: 161cm
- Hobbies: Karaoke, listening to music, watching movies
- Talents: Tennis, cooking, Antonio Inoki imitation
- Charm Point: Smile
- Least Favorite Food: Sea urchin roe and salmon roe
- Audition Song: Morning Musume - AS FOR ONE DAY
- Hello! Project Groups:
- Reborn Eleven (2011)
She was one of the 2003 Hello! Project audition winners. Reportedly she was supposed to debut as a solo artist, however nothing came about and instead she debuted in the group v-u-den, with Ishikawa Rika and Okada Yui. She was also made a member of the Hello! Project kickbase team, Metro Rabbits H.P..
After v-u-den's disbanding, Erika remained within Hello! Project until the mass Elder Club graduation in 2009. Since then she has remained with UP-FRONT AGENCY. In December of 2009, Erika and former v-u-den member Yui briefly reunited to perform two live shows: the "MIYO-YUI no Kyounen mo Futaribocchi Casual Dinner Show" on December 20th and the "MIYO-YUI no Kyounen mo Futaribocchi Special Live" on December 23rd. Many v-u-den songs were featured, as well as some cover songs.
Miyoshi shifted her career's focus from music to acting, taking part in several live stage plays. Among these was the 2011 Morning Musume/Hello! Project musical, "Reborn: Inochi no Audition". She sang as part of the musical's sub-unit, Reborn Eleven.
Early in April 2013 Erika announced her marriage through her blog. She married an IT worker. Miyoshi has stated that she will continue working even after marriage.
-  Sukeban Deka Codename Asamiya Saki (as Kanda Kotomi)
-  Cat's Eye Club
-  Cat Eye Club 2"
- [2010.09.08-12] Tsubuyaku Girl's (つぶやくGirl's)
-  Kiniro no Corda (as Nami Amou)
- [2011.10.08-17] Reborn~Inochi no Audition~ (リボーン～命のオーディション～) (as Mozart)
- [2011.12.13-18] Akahana (あかはな)
- [2005.03.05] Hello!x2 Miyoshi Erika & Okada Yui from v-u-den (ハロハロ！ 三好絵梨香＆岡田唯 写真集from美勇伝) (with Okada Yui)
- [2007.01.28] Erika Miyoshi Hello! Project 2007 Winter Concert
- Is an Actors Studio graduate.
- Is good friends with Okada Yui and Tanaka Reina.
- Has to wear glasses, but usually wears contact lenses.
- Entered the Morning Musume LOVE Audition 21, but was cut.