President Mesic will also meet the Parliament Speaker, attend a Croatian-South Korean business forum and visit some leading South Korean companies.
After the visit to South Korea, Mesic will travel to San Francisco on April 10 to deliver a speech before the World Affairs Council on the role of small countries on the international scene of the 21st century.
During his visit to California, Mesic will meet prominent business people of Croat descent and hold talks with former US secretary of state George Schultz.
On 11 and 12 April the Croatian president will head a state delegation on a visit to Ireland. The visit will include meetings with Irish President Mary McAleese and PM Bertie Ahern.