Maisach is a municipality in the district of Fürstenfeldbruck, in Bavaria, Germany. It is the largest municipality in the Fürstenfeldbruck district. It is situated 4 km north of Fürstenfeldbruck, and 25 km northwest of Munich. It is served by an S-Bahn station on the S3 towards Mammendorf, which lies south of the town center. The tallest building in the town belongs to the eponymously named local brewery and sports an aircraft warning beacon.