During the Tuesday visit, Zarif and Finland President Sauli Niinisto explored avenues for the development of cooperation.
Zarif also extended an invitation of President Hassan Rouhani to Finnish counterpart to visit Iran.
Earlier in the day, the Iranian top diplomat had met with Finnish Parliament Speaker Maria Lohela during which they discussed ways to boost the two countries’ ties.
In Finland, Zarif delivered a speech to a closed-door political forum in Helsinki on the opportunities and challenges of Middle East security.
He later held a meeting with Martti Ahtisaari, the tenth president of Finland from 1994 to 2000, Nobel Peace Prize laureate and a United Nations diplomat.
Travelling with a 60-strong delegation of Iranian businessmen, Zarif arrived in Finland on Monday night after a two-day visit to Poland.
He is also scheduled to visit Sweden and Latvia.