Saku (German: Sack) is a small town (Estonian: alevik) in Harju County, Estonia, located 16 km (10 mi) south from Tallinn, the capital. It is the administrative centre of Saku Parish. Saku had a population of 4,675 on 1 April 2012, which makes it the biggest small town in Estonia.
Saku is most known for the Saku Brewery which is one of two biggest breweries in Estonia.
Vääna River crosses Saku.
Saku Manor (German: Sack) traces its history back to 1463. The current manor house was built in 1825-1830 in a neoclassical style, and is possibly designed by the renowned St. Petersburg architect Carlo Rossi. It is one of the finest examples, perhaps the finest, of a neoclassical manor house in Estonia.
- "Üldinfo" (in Estonian). Saku vald. Retrieved 27 September 2012.
- Viirand, Tiiu (2004). Estonia. Cultural Tourism. Kunst Publishers. p. 55. ISBN 9949-407-18-4.
- Sakk, Ivar (2004). Estonian Manors - A Travelogue. Tallinn: Sakk & Sakk OÜ. pp. 44–45. ISBN 9949-10-117-4.
- Hein, Ants (2009). Eesti Mõisad - Herrenhäuser in Estland - Estonian Manor Houses. Tallinn: Tänapäev. p. 31. ISBN 978-9985-62-765-5.