János Áder

János Áder (born May 9, 1959) is a Hungarian lawyer and politician who served as the President of Hungary from May 2012 to May 2022. Born in Csorna in western Hungary, he studied law at Eötvös Loránd University in Budapest and worked at the Institute for Legal and Administrative Sciences before entering politics in the late 1980s.

He was a founding member of Fidesz, the Alliance of Young Democrats, in 1988, when the party emerged from the opposition movement against the one-party state. Elected to the National Assembly in 1990, he served as Speaker of the House from 1998 to 2002 during the first government led by Viktor Orbán.

Áder was a Member of the European Parliament from 2009 to 2012, sitting with the European People's Party group, where he focused on environmental and water policy. After Pál Schmitt resigned over a plagiarism scandal in 2012, the Fidesz-led parliament elected Áder President of Hungary; he was reelected in 2017 for a second five-year term and left office in 2022, succeeded by Katalin Novák.

As president he signed Hungary's controversial Fundamental Law amendments and represented the country at international climate forums, including the Budapest Water Summit series. He returned to environmental advocacy after leaving Sándor Palace, hosting a podcast on climate and sustainability.

The given name János is the Hungarian form of John, from the Hebrew Yochanan, meaning "Yahweh is gracious." The traditional male name has been borne by Hungarian kings and writers including János Arany, and he has carried it through three decades in Hungarian public life.