Samobor (pronounced [sâmɔ̝bɔ̝ːr]) is a town in Zagreb County, Croatia. It is part of the Zagreb metropolitan area. Administratively it is a part of Zagreb County.

Samobor is located west of Zagreb, between the eastern slopes of the Samobor hills (Croatian: Samoborsko gorje), the eastern part of Žumberak Mountains, in the Sava River valley. It is part of the historical region of Croatia proper.

Since records began in 1981, the highest temperature recorded at the local weather station was 39.0 °C (102.2 °F), on 24 August 2012. The coldest temperature was −25.6 °C (−14.1 °F), on 12 January 1985.

The city government, court, police, health service, and a post office are part of the Samobor infrastructure.

Samobor has existed as a free royal town since 1242, according to a document of endowment by King Béla IV.

Since the Treaty of Karlowitz in 1699, Szamobor was part of the Habsburg monarchy, (Transleithania after the compromise of 1867), and soon after in the Kingdom of Croatia-Slavonia, created when the Kingdom of Slavonia and the Kingdom of Croatia were merged in 1868. In the late 19th and early 20th century, Samobor was a district capital in the Zagreb County of the Kingdom of Croatia-Slavonia.

The DVD "Chromos" was founded in 1954, under the VZ grada Samobora.

One of the chief industries in Samobor is crystal cutting, acclaimed in Europe and all over the world.