Chermignon is a municipality in the district of Sierre in the canton of Valais in Switzerland.
Chermignon is first mentioned in 1228 as Chermenon and Chirminon. It became an independent municipality in 1905 when it separated from Lens.
Chermignon has an area, as of 2009, of 5.4 square kilometers (2.1 sq mi). Of this area, 2.09 km2 (0.81 sq mi) or 38.8% is used for agricultural purposes, while 1.64 km2 (0.63 sq mi) or 30.5% is forested. Of the rest of the land, 1.54 km2 (0.59 sq mi) or 28.6% is settled (buildings or roads), 0.02 km2 (4.9 acres) or 0.4% is either rivers or lakes and 0.07 km2 (17 acres) or 1.3% is unproductive land.
Of the built up area, industrial buildings made up 1.3% of the total area while housing and buildings made up 17.3% and transportation infrastructure made up 6.1%. while parks, green belts and sports fields made up 3.3%. Out of the forested land, 22.5% of the total land area is heavily forested and 8.0% is covered with orchards or small clusters of trees. Of the agricultural land, 0.2% is used for growing crops and 22.9% is pastures, while 15.8% is used for orchards or vine crops. Of the water in the municipality, 0.2% is in lakes and 0.2% is in rivers and streams.