Lise Magnier (born 31 December 1984) is a French politician who has represented Marne's 4th constituency in the National Assembly of France since 2017.
Magnier was elected in Marne's 4th constituency as a Republican at the 2017 legislative election.
In November 2017, Magnier joined the new Agir party. In 2022, she joined Horizons, and was re-elected in the 2022 French legislative election with the support from Ensemble Citoyens.