The "unprecedented" election pits Europe against the US as current incumbent Antonio Vitorino faces a challenge from his deputy Amy Pope.
EDnews informs via DW that the UN's International Organization for Migration (IOM) is set to choose its next director general on Monday.
The unusually tense contest is being fought by the US's Amy Pope, the IOM deputy director and her European boss Antonio Vitorino, the current IOM chief.
The 175 member states will vote by a secret ballot in closed-door meetings in Geneva.
Vitorino is only the second non-American to hold the top job since the agency was founded over 70 years ago. Pope, on the other hand, would be the first woman in charge if elected.