Trstenik (Serbian Cyrillic: Трстеник, pronounced [tr̩stěniːk]) is a town and municipality located in the Rasina District of Serbia. According to 2011 census, the population of the town is 15,329, while population of the municipality was 42,989. It lies on the West Morava. The town is known for its industry of hydraulics and pneumatics company, Prva Petoletka.