Leimbach () is a quarter in the district 2 in Zürich. It is located in the lower Sihl Valley (Sihltal).
It was formerly a municipality of its own, having been incorporated into Zürich in 1893. The quarter has a population of 6,415 as of 2025 and is distributed over an area of .
Zürich Leimbach railway station is a stop of the Zürich S-Bahn on the line S4. It is a 10-minute ride from Zürich Hauptbahnhof.