The ministry of Maritime Affairs, Transport and Infrastructure of the Republic of Croatia (Croatian: Ministarstvo mora, prometa i infrastrukture, MMPI RH) is a ministry in the Government of Croatia.

The Ministry of the Sea, Transport and Infrastructure performs administrative and other tasks related to:^[2]

• domestic international maritime, nautical, road, rail, air and postal traffic; the system of transport by cable cars, funiculars and lifts and transport on inland waters with the infrastructure of these modes of transport;

• planning, drafting and implementation of strategic documents and transport infrastructure projects, proposes a strategy for the development of all modes of transport;

• protection of the sea from pollution from ships; seaports, maritime domain and delimitation of maritime domain, maritime insurance and maritime agencies; ports on inland waterways; land freight transport centers; airports;

• means of transport other than those falling within the scope of work of other ministries;

• inspection activities: safety of navigation at sea, domestic and international road traffic and roads, except for activities within the scope of the Ministry of the Interior, safety of railway transport, safety of lifts, cable cars and lifts, safety of air navigation and safety of navigation on inland waters

• electronic communications, information society (except activities within the scope of other central state administration bodies) and postal services, preparation of draft laws and other regulations in the field of electronic communications and postal services, ensuring and implementing established policy and application of laws and other regulations in the field of electronic communications and postal services, drafting strategies, strategic plans, studies, guidelines and programs for the development of electronic communications and postal services in the Republic of Croatia and drafting plans for their implementation, drafting analyzes and reports and preparing proposals for measures and plans for developing and improving electronic communications communications and postal services and in domestic and international postal traffic, preparation of draft laws and other regulations in the field of radio equipment and electromagnetic compatibility, cooperation in monitoring, determining and analyzing indicators of development of information and communication technologies (ICT), especially broadband services and technologies, drafting measures and plans to encourage the development and improvement of the market in ICT services and infrastructure, with special emphasis on broadband services and technologies, drafting the position of the Republic of Croatia, expert bases, analysis, reports, plans and other documents for the purpose of performing European affairs in the field of electronic communications, information society, radio equipment, electromagnetic compatibility and postal services, participation in European and international organizations and institutions and working bodies of the Council of the European Union electronic communications, information society and postal services, participation in interstate meetings and negotiations in the field of electronic communications, information society and postal services, cooperation in the preparation and drafting of proposals for international treaties, agreements and conventions in the field of electronic communications communications, information society and postal services and the preparation of draft laws on the ratification of these international acts

The Ministry of the Sea, Transport and Infrastructure performs administrative, professional and other tasks related to:^[2]

• organizing the development of strategic infrastructure projects and investment programs for all modes of transport, of special importance to the Republic of Croatia and preparing proposals to the Government of the Republic of Croatia for their approval and implementation;

• organization of appropriate large infrastructure investment works in the construction of transport infrastructure facilities and devices, except for their reconstruction and maintenance, and other appropriate major infrastructure works important for sustainable development of the Republic of Croatia which are fully or largely financed from the state budget; entities in the construction of such facilities and monitors and controls these investments,

• and performs professional tasks related to the initiation, harmonization and supervision of activities determined by acts and regulations governing the overall development of traffic.

The Ministry of Sea, Transport and Infrastructure has a total of 1,008 staff (as of January 2022), working in the following departments:^[3]

Currently serving officials at the Ministry (as of January 2022):^[4][5][6]

• Port captaincies of the Republic of Croatia

• Hydrographic Institute of the Republic of Croatia

• Inhabited Islands of Croatia
• Transport in Croatia
• Croatian Railways
• Hrvatske ceste
• Hrvatske autoceste