Ni Ketut Mahadewi Istarani (born 12 September 1994) is an Indonesian badminton player specializing in doubles, from PB.

[1] She was the women's doubles bronze medalist at the 2015 SEA Games with her partner Anggia Shitta Awanda.

Ni refers to "female" and Ketut means she is the fourth child of the family.

[citation needed] She was born in Bengkel Kawan village, Kediri, Tabanan Regency.

Girls' doubles Mixed doubles In the senior level tournament, Istarani won bronze medal in the 2015 SEA Games, and also won 2 individual titles in the BWF tour equivalent events.