Ports of the State (Spanish: Puertos del Estado) is a State-owned company responsible for the management of Spanish state-owned ports.

This company, along with ENAIRE, exists for a constitutional mandate in Article 149, which grants the State the exclusive competence of ports and airports.

The functions of the company are regulated in the Royal Legislative Decree 2/2011, of September 5, about State Ports and the Merchant Navy:[4] The coordination in maritime signaling is carried out through the Lighthouses Commission.

The Law provides the Spanish port system with the necessary instruments to improve its competitive position in an open and globalized market, establishing a management autonomy regime for the Port Authorities, which must exercise their activity with business criteria.

Within this framework, it is intended that the management of ports of general interest respond to the so-called "landlord" model, in which the Port Authority is limited to being a provider of infrastructure and port land and to regulate the use of this public domain, while the services are mainly provided by private operators under authorization or concession regime.