The Thomanerchor is a boys' choir in Leipzig, Germany. The choir was founded in 1212. The choir comprises about 90 boys from 9 to 18 years of age. The members, called Thomaner, reside in a boarding school, the Thomasalumnat and attend the St. Thomas School, Leipzig, a Gymnasium school with a linguistic profile and a focus on musical education. The younger members attend the primary school Grundschule Forum Thomanum or Anna-Magdalena-Bach-Schule. Johann Sebastian Bach served as Thomaskantor, director of the choir and church music in Leipzig, from 1723 to 1750.

Leipzig is the most populous city in the German state of Saxony. The city has a population of 628,718 inhabitants as of 2023. It is the eighth most populous city in Germany. The name of the city and those of many of its districts are of Slavic origin.