Genevieve Manon Florence Chenneour (born 1997 in Northallerton), formerly Genevieve Martha Manon Randall is an English actor who played Miss Clara Livingston in the Netflix production Bridgerton and has a lead role in the film 1242: Gateway To The West

Chenneour holds dual British and Irish citizenship. She was until retirement in 2016 a professional athlete who represented Team GB at the Baku 2015 European Games, World Aquatics and European Championships in the solo, duet, and team synchronised swimming events.

Chenneour was born in Northallerton and brought up in Faringdon, Oxfordshire. She was educated at King Alfred's Academy, and Oxford Brookes University.

Chenneour competed internationally with Great Britain at the 2013 World Aquatics Championships. She held the Team GB UK Sport Athlete Podium Potential Award from 2013 to 2014. She competed in the 2014 European Aquatics Championships and finished thirteenth in the women's solo and duet events. In 2015 she competed at the European Games in Baku and the 2015 World Aquatics Championships in Kazan, Russia. In 2015, she was named ASA Aquatic Awards Performance Athlete of the Year alongside her duet partner, Jodie Cowie and was awarded an International Olympic Committee Olympic Solidarity Athlete Scholarship.