Sonia Fergina Citra is an Indonesian model and beauty pageant titleholder who won Puteri Indonesia 2018. She represented her country at the Miss Universe 2018 pageant held in at IMPACT Arena, Muang Thong Thani in Nonthaburi Province, north of Bangkok, Thailand. Sonia became the sixth Indonesian, third Sumatran and the second representative of Bangka Belitung to place in the semifinals in Miss Universe history.

Putri Indonesia 2018, the 22nd Puteri Indonesia pageant, was held on March 9, 2018 at Jakarta Convention Center, Jakarta, Indonesia. Bunga Jelitha, Puteri Indonesia 2017 of Jakarta SCR 5, crowned her successor, Sonia Fergina Citra of Bangka Belitung, at the end of the event. She defeated 38 other candidates to win the title of Miss Universe Indonesia 2018 and represented Indonesia at Miss Universe 2018, where she placed as one of the Top 20 finalists.