Periș is a commune in the far northwestern corner of Ilfov County, Romania. The commune is composed of three villages: Periș, Bălteni and Buriaș. It used to include Brătulești and Cocioc villages, until these were absorbed by other villages in the commune.
The surface area of the commune is 77.97 km², and its altitude ranges from 105 to 137 m above sea level.
It was the site of the Battle of Periș, on August 24, 1546, where Mircea Ciobanul launched a surprise attack on the boyars opposing his rule and greatly decimated them.