"Finland’s transport minister, Sanna Marin, has been selected to lead the Social Democratic party, making her the country’s youngest prime minister ever. The 34-year-old Marin, whose party is the largest in a five-member governing coalition, will be the world’s youngest serving prime minister when she takes office in the coming days. She is also Finland’s third female government leader." Finland anoints Sanna Marin, 34, as world's youngest serving prime minister
To add to this, the leaders of the other four parties in the coalition are also female, Li Andersson, 32, Left Alliance; Katri Kulmuni, 32, Centre Party; Maria Ohisalo, 34, Green League; and Anna-Maja Henriksson 55, Swedish People's Party of Finland.