National Council of Young Israel (NCYI) or Young Israel (in Hebrew: Yisrael Hatza'ir, ישראל הצעיר), is a synagogue-base Orthodox Judaism organization in the United States with a network of affiliated "Young Israel" synagogues. NCYI was founded in 1912 by Rabbi Israel Friedlander and Rabbi Mordecai Kaplan to combat the wave of assimilation by Jews into secular American society.