Lab/Shul is a non-denominational Jewish congregation located in New York City, New York, United States. The congregation was founded by Rabbi Amichai Lau-Lavie, when he was a rabbinical student, in 2012 as an experimental, pop-up synagogue with support from the UJA-Federation, Jewish foundations, and private donors. The intent of the congregation is to experiment with various forms of Jewish practice, hence "Lab" in its name. As of April 2022, it has approximately 300 families as members.