Jonathan Menkos

Jonathan Kiril Thomas Menkos Zeissig (born 29 June 1975) is a Guatemalan economist, politician, writer, academic and analyst serving as Guatemala's Minister of Public Finance since January 19, 2024. He previously served as president of the Central American Institute of Fiscal Studies (ICEFI) starting September 2012.

On March 5, 2019, the Board of Directors of the Central American Institute of Fiscal Studies announced that Menkos requested a license to be absent from his duties as President of the Central American Institute of Fiscal Studies from March 1 to August 15, 2019. Hours later, the political party Movimiento Semilla announced that Menkos had been elected as its vice presidential candidate and running mate of ex-attorney general Thelma Aldana, however Aldana was disqualified from the presidential race.