A screwdriver is a simple and popular alcoholic highball drink made with orange juice and vodka. In the UK, it is referred to as a "vodka and orange". While the basic drink is simply the two ingredients, there are many variations. Many of the variations have different names in different parts of the world.

Vodka is a clear distilled alcoholic beverage. Different varieties originated in Poland, Russia, and Sweden. Vodka is composed mainly of water and ethanol but sometimes with traces of impurities and flavourings. Traditionally, it is made by distilling liquid from fermented cereal grains and potatoes since the latter was introduced in Europe in the 18th century. Some modern brands use corn, sugar cane, fruits, honey, and maple sap as the base.