Rum liqueur, a type of flavored alcoholic beverage, is derived from rum and often infused with additional flavors such as spices, fruits, or herbs. It typically has a lower alcohol content compared to straight rum, making it a versatile ingredient in mixology. The sweet and rich profile of rum liqueur adds complexity to cocktails, enhancing both the aroma and the taste with its distinctive characteristics.

When used in cocktails, rum liqueur can complement a wide range of ingredients, from citrus juices to creamy mixers. It is a popular choice for creating layered drinks and can serve as a sweetener, balancing the flavors in a concoction. Classic cocktails that may feature rum liqueur include the Mai Tai, Piña Colada, and various tiki drinks, where it brings depth and a touch of exotic flair.