Banana liqueur, also known as crème de banane, is a sweet, banana-flavored alcoholic beverage. It is typically made by infusing neutral spirits with banana flavoring and adding sugar to achieve its characteristic sweetness. This liqueur usually has a bright yellow color, although it can also be found in clear varieties. The alcohol content varies but generally falls around 17-25% ABV (alcohol by volume). The prominent, sweet banana flavor makes it a popular ingredient in a variety of cocktails and mixed drinks.

In the context of cocktails, banana liqueur can be used to add a tropical twist to both classic and modern recipes. It pairs well with other tropical fruits, such as pineapple and coconut, making it a common addition to tiki drinks. It can also complement creamy cocktails, such as those made with cream or coconut milk, adding depth and richness to the drink. Popular cocktails featuring banana liqueur include the Banana Daiquiri, the Dirty Banana, and the Banana Split Martini. Its versatility and unique flavor profile make banana liqueur a valuable addition to any bartender's repertoire.