Palézieux (palezjø) is a village and former municipality in the district of Lavaux-Oron in the canton of Vaud in Switzerland. Since 2012 it forms part of the municipality of Oron.
Palézieux is first mentioned in 1134 as de Palaisol.
Under the rule of Savoy, the family de Palézieux – mentioned in texts from 1154 – had their castle near the village, of which remains can be seen today (mainly a wall). The castle controlled a bridge on the River Broye, which was a source of profit through the various tolls and taxes.
The bridge over the Broye was washed away in 1700, following a flood. It was rebuilt in 1750, following several petitions. Modernized, it is still in place.
The creation of the separate settlement at Palézieux-Gare came about with the commissioning of the railway line between Lausanne and Bern in 1862, which was built away from the original village (which became known as Palézieux-Village). In 1876 the line from Payerne was added, which runs adjacent to Palézieux-Village, and in 1903 the metre gauge line leading to the Gruyère was constructed, with its terminus at Palézieux-Gare.
Palézieux is located below the confluences of the Broye and the smaller Mionne and Biorde rivers, and has two main settlements: Palézieux-Village and Palézieux-Gare. The Village is situated at an elevation of 634m, and is (by road) to the northwest of Palézieux-Gare, which is at 676m. Palézieux-Gare is the smaller settlement but is a notable railway junction, and is named for the railway station there. There is a post office at Palézieux-Gare. The hamlet of Serix, at 660m above sea level, is (by road) to the northeast of Palézieux-Village.
The former municipality had an area, , of . Of this area, or 62.3% is used for agricultural purposes, while or 25.1% is forested. Of the rest of the land, or 12.5% is settled (buildings or roads), or 0.2% is either rivers or lakes.
Of the built up area, housing and buildings made up 4.8% and transportation infrastructure made up 5.9%. Out of the forested land, 23.2% of the total land area is heavily forested and 1.