Fiona Nave is an American politician serving as a member of the Montana House of Representatives from the 57th district.

She earned a Bachelor of Science degree in applied mathematics from California State Polytechnic University, Pomona.

[1][2] Nave served as an operations research analyst and computer specialist for the United States Navy for 26 years.

She has served as the chair of the Stillwater County, Montana Republican Central Committee since 2015 and was also a member of her local ambulance district.

[3] Nave was elected to the Montana House of Representatives in November 2020 and assumed office on January 4, 2021.