Yumi Adachi (安達 祐実, Adachi Yumi, born 14 September 1981 in Taito, Tokyo) is a Japanese actress and singer.

Adachi married comedian Jun Itoda of the comedy duo "Speed Wagon" in September 2005, they later welcomed the birth of their first child, a daughter, in May of the following year.

In November 13, 2014, Adachi married photographer Tomoki Kuwajima.

[2] In February 2016, she announced her second pregnancy and Kuwajima's first child, and she later gave birth on July 29 of the same year.

[3] On December 28, 2023, Adachi announced on her official social media account that she had divorced her husband of 10 years.