Modern Orthodox Judaism is a movement within Orthodox Judaism that attempts to synthesize Jewish values and the observance of Jewish law, with the secular, modern world.

Modern Orthodoxy holds that Jewish law is normative and binding, while simultaneously attaching a positive value to interaction with the modern world. Modern Orthodoxy is at its core a part of Orthodoxy, with beliefs and practices that are loyal to Halachah, the ancient interpretation and practice of Jewish law. Modern Orthodox Jews, therefore, eat only kosher foods, observe Shabbat from Friday afternoon through Saturday evening, and passionately follow numerous other traditions that have remained largely unchanged for thousands of years, ranging from the way we pray to the way we interact with our families to the way we celebrate life-cycle moments, be they happy or sad.