Mei Okada (Japanese: 岡田 夢以, Hepburn: Okada Mei, born 19 May 1996) is a Japanese singer and voice actress from Fukaya, Saitama, affiliated with Ace Crew Entertainment.

[2] In November 2014, she became the founding leader of the Japanese idol group Tenkou Shoujo [ja].

[1][3] In September 2019, she announced that she would leave Tenkou Shoujo after their 2019 nationwide tour.

It's MyGo!, where she starred as Timoris/Umiri Yahata, announced that she was a bass guitarist of the heretofore-anonymous BanG Dream!

[10][11] Prior to becoming part of the franchise, her experience with musical instruments was initially limited to elementary school piano lessons, but she decided to learn bass guitar in the preceding months.