The Cytron Synagogue, also known as the Beit Midrash Cytron, is a former Orthodox Jewish congregation and synagogue, located at 24a Ludwika Waryńskiego Street in Białystok, in Podlaskie Voivodeship, Poland. Completed in 1936 in the Modernist style, the construction was funded by Shmuel Cytron, it served as a house of prayer until World War II; subsequently used for profane purposes, and as the Sleńdzińscy Gallery, an art gallery.