BUDAPEST (Reuters) - Hungarian Prime Minister Viktor Orban's ruling Fidesz party will nominate President Janos Ader for a second term in 2017 when his term expires, national news agency MTI reported on Friday, citing Orban's press chief.

Ader, a lawyer and longtime member of Orban's Fidesz party, has been a strong ally of Orban since 2012, when Fidesz' parliamentary majority elected him president.

He had provided Orban with a solid backing for his political program. The president's post is to a great extent ceremonial.

(Reporting by Krisztina Than and Sandor Peto; Editing by Alison Williams)