Kaser is a village in the Town of Ramapo Rockland County, New York, United States located north of Monsey; east of Airmont; south of Viola and west of Spring Valley. As of the United States 2010 Census, the village population was 4,724.
Kaser is a village with a population consisting almost entirely of Hasidic Jews of the Viznitz sect. The etymology of the name comes from the Eastern European pronunciation of Hebrew, as the word "כֶּתֶר" is pronounced "Kay-ser", hence "Kaser", (כֶּתֶר=crown in English). 4% of Kaser's population claims Romanian ancestry, making Kaser the most Romanian census place in the United States.