List of sibling members

The list contains Group48 members who have older/younger/twin sisters who also was or ever be Group48 member.

Notes: (older sister)-(younger sister)

AKB48 members

• Muto Tomu - Muto Orin

NMB48 members

• Jonishi Kei - Jonishi Rei
• Yamada Nana (former) - Yamada Suzu

Different Group members

• Nomura Nao (AKB48) - Nomura Miyo (SKE48)
• Takada Ayana (AKB48) - Takada Shiori (SKE48) (both former)

JKT48 members

• Melody Nurramdhani Laksani - Frieska Anastasia Laksani
• Stella Cornelia (former) - Sonia Natalia
• Shinta Naomi - Sinka Juliani
• Hasyakyla Utami Kusumawardhani - Adhisty Zara

SHY48 members

• Liu Jiao - Liu Na (twin sister)