The Naval Museum has a wide and varied collection of decorative arts that includes pieces of furniture, ceramics, jewellery, and other objects such as fans and toys, many of which are related to the sea, both for the theme depicted and for the use they were put to.

Some of the pieces of furniture are the Museum's showcases themselves, many of which are period chests, such as one made in the 18th century in rosewood, tortoiseshell and boxwood, still in use today. Other outstanding pieces include a 16th-century Catalan chest, a 17th-century Spanish chest, and the hard stone table that was in the palace built by Sabatini in 1776 for the Secretary of State, and subsequently used by Manuel Godoy.

Ceramic items include the Pasajes de San Juan-Guipúzcoa dinner service, used at the banquet offered by the Naval Museum in Madrid in 1858 to Queen Isabel II, a set of polychrome ceramic tiles from the 18th century made by Catalan workshops, pieces by Daniel Zuloaga created at the Moncloa factory, as well as pieces from Manises and the Pickman Factory.