|Full name||Lénora Guion-Firmin|
|Born||7 August 1991|
Guion-Firmin won the silver medal at the 2012 European Athletics Championships in Helsinki at the 4×400 meter relay.
She competed for the University of Maryland Eastern Shore. She twice earned All-America status in 2012, reaching the NCAA finals in the 400-meter dash in both indoor and outdoor. She earned the same distinction in 2013, reaching the finals in the 400-meter dash in the NCAA Outdoor Championships. In July 2013 Guion-Firmin captured three medals in the European Championships,U23. She took gold in the 400 meters, silver in the 200 meters and was part of the bronze-medal winning 4x400 meter relay team.