Boquerones en vinagre is a Spanish appetizer that is commonly served as a tapa. It consists of fresh filleted anchovies marinated in vinegar and olive oil. Before serving, they are commonly seasoned with parsley and garlic, then garnished with olives or capers.

It is recommended to serve boquerones en vinagre with a cold beer on the side, especially during hot summer months. Due to health concerns regarding a certain parasite, since 2006 it is mandatory to freeze the anchovies for at least 24 hours before marinating them.