Shimazaki Haruka was a Japanese singer and a member of the Japanese idol group AKB48. She was in Team B.
Shimazaki Haruka took part in the AKB48 6th Kenkyuusei Audition (9th generation AKB48 audition) in 2009, and on September 20 it was announced that she was accepted. In the AKB48 17th single senbatsu election, which took place from May to June 2010, Shimazaki Haruka ranked 28th, the highest of all trainees. In June 2011, it was announced that she would be promoted to a newly created Team 4. In the AKB48 27th single senbatsu election, which took place from May to June 2012, Shimazaki Haruka ranked 23rd. In August, she was transferred to Team B after Team 4 was dissolved. In September, Shimazaki Haruka won the 29th Single Janken Senbatsu Tournament, held in Nippon Budokan, earning the center position in a new AKB48's single. The single would be titled "Eien Pressure" and would be released on December 5.
In October, she appeared at the premiere of Shiritsu Bakaleya Koukou, a movie starring her. The movie was based on the 2012 TV series Shiritsu Bakaleya Koukou. Later in October, she appeared together with Takahashi Minami in an automated external defibrillator (AED) training session, sponsored by the Japanese Red Cross. On February 23, 2013 she appeared on the cover of the April issue of the Japanese fashion magazine Smart.