Zarif, who arrived in the Norwegian capital of Oslo on Wednesday, attended a meeting with Solberg on Thursday to discuss issues of mutual interest.
The Iranian top diplomat also held a separate meeting with Isaksen on Thursday, discussing a host of issues, including ways to boost bilateral relations between the two countries in diverse economic fields.
Zarif is slated to hold talks with his Norwegian counterpart, Ine Marie Eriksen Soreide, later today.
Zarif started his tour of Scandinavia on Sunday night, which has taken him to Finland, Sweden, and Norway.
During his visit to Finland, Zarif met with President Sauli Niinisto and his Finnish counterpart, Pekka Haavisto.
The two sides discussed the 2015 nuclear deal known as Joint Comprehensive Plan of Action (JCPOA), maritime security in the Persian Gulf, and also issues related to human rights.
He also met with Finnish Minister for Development Cooperation and Trade Ville Skinnari during his stay in the country.
Zarif left Finland on Monday for Sweden on the second leg of a three-nation tour of Scandinavia.
The top Iranian diplomat had visited Kuwait before heading to Scandinavia.
From Norway, Zarif plans to make an official visit to France and meet with French President Emmanuel Macron and Foreign Minister Jean-Yves Le Drian on Friday.