Zarif on Wednesday held a telephone conversation with Morales, the former president of Bolivia and the leader of the party that won the country's recent elections.
The top Iranian diplomat congratulated Morales on his party's victory in Bolivia, and wished success for the Latin American country's new government.
He also expressed Iran's preparedness to promote bilateral relations with Bolivia's new legitimate government.
Luis Arce, the candidate for Morales’ party, won more than 50 percent of the vote in Bolivia’s presidential election after 11 months of political turmoil.
Arce, who served as economics minister under Morales for more than a decade, oversaw policies that led to a surge in growth and a sharp reduction in poverty.