Rini Wulandari (born 28 April 1990) or known by her stage name, RINNI, is an Indonesian R&B singer.
On 28 July 2007, she won the fourth season of the reality television show Indonesian Idol, making her the second female winner.
She won the competition at the age of 17, making her the first youngest winner in Indonesian Idol history.
Other songs Rini performed on Indonesian Idol include Christina Aguilera's "Reflection", Mariah Carey's "Emotions", and Celine Dion's "Because You Loved Me".
In 2012, she is one of the small list of Indonesian artists with bachelor's degrees which graduated from Paramadina University, Jakarta majored in communications.