Aizpute (German: Hasenpoth; historically Polish: Hazenpot) is a town in western Latvia's South Kurzeme Municipality in the valley of the Tebra River, situated 50 km (31 mi) northeast of Liepāja.

The territory of modern Aizpute was inhabited by ancient Curonians since the 9th century. St. John Lutheran's church was built on the Curonian hillfort. In the 13th century, during the Livonian crusade, the territory of Aizpute was conquered by German crusaders. In 1248, the master of the Livonian Order Dietrich von Grüningen ordered the building of a stone castle in Aizpute. The castle and the whole settlement became known as Hasenpoth. After the partition of Courland in 1253 Aizpute became part of the Bishopric of Courland. In 1260 Aizpute church was built.

Bishop of Courland Otto granted Magdeburg rights to Aizpute in 1378.

In the second half of the 16th century, Aizpute experienced rapid development because the Tebra river was used as the main trade route for the merchants of Aizpute who shipped their cargo down to the sea. After the Polish-Swedish war, all trade and shipping infrastructure was destroyed and Aizpute started to experience decline. During the period of 1611-1795, it was under the power of the Polish–Lithuanian Commonwealth as a capital of the semi-autonomous Powiat Piltynski (District of Piltene).

In 1795, Aizpute and the whole of Courland was incorporated into the Russian Empire and became part of the Courland Governorate. During the Russian Revolution of 1905, Aizpute was one of the places where local revolutionists showed armed resistance to the Cossack punitive units. It led to the so-called Aizpute War.

During the period of the Republic of Latvia, Aizpute became the centre of a district, but in the Soviet period it became incorporated into Liepāja District. In 2009 Aizpute became the centre of Aizpute Municipality.

Its current name is the Lettization of its German name, and is officially in use since 1917.

• Heinrich Blumenthal (physician) (1804–1881), Baltic German physician
• Eduard von Keyserling (1855–1918), Baltic German writer, born at nearby Tāšu-Padure Manor
• Tatjana Barbakoff (1899–1944), ballet dancer
• Pēteris Vasks (born 1946), contemporary Latvian composer
• Ingrīda Circene (born 1956), politician, former Latvian Minister of Health
• Mārtiņš Freimanis (1977–2011), musician and actor, spent his childhood in Aizpute
• Helvijs Lūsis (born 1987), bobsledder
• Anton Zabolotny (born 1991), Russian footballer
• Klāvs Bethers (born 2003), footballer

Aizpute is twinned with:

• Schwerzenbach, Switzerland
• Karlskrona, Sweden

• List of cities in Latvia

• Photographs of the town in 2007