What is "delessert"

Delessert is a surname. Notable people with the surname include:

• Adolphe Delessert (1809–1869), French explorer and naturalist
• Édouard Delessert (1828–1898), French painter, archaeologist and photographer
• Étienne Delessert (born 1941), Swiss graphic artist and illustrator
• Jules Paul Benjamin Delessert (1773–1847), French banker and naturalist