Renah Ostrinsky of Longmeadow, formerly of Woodmere, N.Y. and Brooklyn, N.Y., died on Nov. 28 at the Jewish Nursing Home of Western Massachusetts. Born in Brooklyn, she was the daughter of the late Rabbi Meir Simha Ostrinsky and the late Martha (Kravitz) Ostrinsky. She was a graduate of Yeshiva University High School for Girls and Brooklyn College where she earned a BS in economics. She worked for 30 years as a computer programmer and systems analyst for Brooklyn College, McKinsey & Co., and the Federal Reserve Bank. She is survived by a sister, Sarah Kaye and her husband, Tom, of Longmeadow; a brother, Zvi Ostrin, and his wife, Karin, of New York City; nieces and nephews, Dr. Rachel Kaye and her husband, Michael, of Teaneck, N.J., Daniella Kaye and her husband, Rich, of New York City, and David Naftali Ostrin and his wife, Sarah, of Zichron Yaakov, Israel; and nine grandnieces and grandnephews. Memorial contributions may be made to the Cure Alzheimer’s Fund; a charity of the donor’s choice; or to Congregation B’nai Torah of Longmeadow.