Qatar's Emir to meet President Erdogan in Turkey
Sheikh Tamim will hold talks on "bilateral ties and regional issues as well as international developments", Turkey's presidential office said in a statement.
Wednesday marked 100 days since Saudi Arabia, Bahrain, the United Arab Emirates and Egypt cut diplomatic ties and imposed an economic blockade on Qatar, accusing it of backing "extremism" and fostering ties with their rival Iran.
Doha has denied the allegations and has been strongly backed by Ankara throughout the standoff.
Ankara has a military base in Qatar and deployed more troops after the hostilities erupted. The closure of the Turkish base was one of 13 conditions demanded by the Saudi-led bloc.
After visiting Turkey, Qatar's leader will visit Berlin for talks with German Chancellor Angela Merkel.