Fibriani Ratna Marita (born February 24, 1994) is an Indonesian swimmer, who specialized in individual medley events.

At age fourteen, Marita became one of the youngest swimmers to mark their official debut at the 2008 Summer Olympics in Beijing, competing in the women's 200 m individual medley.

Swimming on the outside in heat one, Marita closed out the field with a slowest time of 2:28.18, just five seconds behind Chinese Taipei's Lin Man-hsu.

[2] Marita set two national records in the medley double at the 2009 Southeast Asian Games in Vientiane, Laos.

[3][4] She swam in the girls' 200 m individual medley, finishing fifth and sixteenth overall in the preliminary heats, outside her personal best of 2:23.92, six hundredths of a second ahead of her qualifying time.