Ayran or laban is a cold beverage of yogurt mixed with cold water and sometimes salt; it is popular in many Central Asian, Middle Eastern and South-eastern European countries.

Similar and possibly related beverages include the South Asian lassi and the Afghan doogh.

The name 'ayran' is used in Turkish and Arabic.

According to Turkish sources, ayran was developed by the Göktürks. According to Persian sources, ayran (doogh) dates to ancient Persia.

Turkey is the biggest producer of ayran in the world, and has researched the subject extensively. In Turkey, ayran is often regarded as a separate category from other soft drinks.

International fast-food companies in Turkey, such as McDonald's and Burger King, include ayran on their menu.

In rural areas of Turkey, ayran is offered as a "standard" drink to guests.

Ayran is usually served chilled, and is a common accompaniment to any form of grilled meat, pastry, or rice.

In Albania Ayran is called Dhallë. It is made from cow yoghurt mixed with water and is served salted and cold. You can buy it in the market, fast-food chains, Byrektore (A shop where Byrek is made). It is very popular in summer.