The Lion Monument is a rock relief sculpture in Lucerne, Switzerland. It was designed by Danish sculptor Bertel Thorvaldsen and carved by Swiss sculptor Lukas Ahorn in 1820. The monument is dedicated to the Swiss Guards who were massacred in Paris during the French Revolution in 1792.

The relief depicts a dying lion resting its head on a shield bearing the fleur-de-lis of the French monarchy. The lion is pierced by a spear and lies on top of broken armor, with a shield bearing the Swiss flag lying beside it. Above the lion, there is an inscription in Latin which reads "To the loyalty and bravery of the Swiss."

The Lion Monument is located in a small park called Denkmalplatz, near the city center of Lucerne. It is considered one of the most famous landmarks of Switzerland and a popular tourist destination. The monument has been described as a symbol of Switzerland's national identity and its long-standing tradition of mercenary soldiers serving in foreign armies.