Adam Jerzy Bielan ([ˈadam ˈjɛʐɨ ˈbjɛlan], born on 12 September 1974 in Gdańsk, Poland) is a Polish politician, Member of the European Parliament for Lesser Poland and Świętokrzyskie and Masovian between 2004 and 2014, and from 2019 MEP for Masovian constituency.

In September 1997, he was elected to the Sejm for Solidarity Electoral Action on the national list: 9 days after his 23rd birthday.

He joined the Right Alliance (PP) when it was formed in 2001, and ran successfully on the Law and Justice (PiS) list in that year's election in Chrzanów.

Together with fellow MEP Michał Kamiński, Bielan was behind Lech Kaczyński's successful campaign in the 2005 presidential election.

[1] In 2007, Bielan was elected as the Vice President of the European Parliament, as the representative of Union for Europe of the Nations, to which PiS belonged.