Fuka Koshiba (小芝 風花, Koshiba Fūka, born April 16, 1997 in Osaka Prefecture, Japan)[1] is a Japanese actress represented by the talent agency Top Coat.

In November 2011, Koshiba won the Grand Prix award at the 2011 Ion and Oscar Promotion Girl Audition.

[3] In 2014, Koshiba played her first leading role in Kiki's Delivery Service.

[5][6] In 2023, Koshiba portrayed the character of Ranna Akamatsu in the cooking drama Fermat no Ryōri, starring Fumiya Takahashi and Jun Shison, and based on the manga series by Yūgo Kobayashi [ja].

[7] On December 27, 2024, she announced that she left Oscar Promotion at the end of the year, and transferred to Top Coat starting 2025.