Fatin Shidqia Lubis (born 30 July 1996), better known as Fatin Shidqia or Fatin, is an Indonesian singer who won the first season of X Factor Indonesia in May 2013. Fatin currently stands as the most successful winner of X Factor Indonesia in history. She was signed to record label Sony Music Entertainment Indonesia.

After winning The X Factor, Fatin released her winner's single "Aku Memilih Setia", which debuted at number one on iTunes Indonesia. Fatin also released her debut album titled For You, which debuted at number one on the iTunes Indonesia Album Chart and became one of the most successful albums of the year domestically. The album earned her eight AMI Awards nominations and five wins, including Best of the Best Album, Best of the Best Newcomer, and Best Pop Female Solo Artist. For You and the six singles released from the album have sold a total of over 500.000 copies domestically. "Dia Dia Dia" was released as the second single in December 2013, which peaked at number 16 on the music chart. The single earned her an Anugerah Planet Muzik Award for the Most Popular Song.

In August 2016, Fatin received the Best Asian New Female Act award from the Daf BAMA Music Awards held at Barclaycard Arena, Hamburg, Germany, which made her the first Indonesian to ever receive the award.