Jarosław Leszek Wałęsa (pronounced [jaˈrɔswaf vaˈwɛ̃sa]; born 13 September 1976 in Gdańsk) is a Polish politician. He was elected to the Sejm on 25 September 2005, getting 14,709 votes in 25 Gdańsk district as a candidate from the Civic Platform list. He is the son of former Polish President Lech Wałęsa.

Wałęsa is a 1995 graduate of Glastonbury High School, in Connecticut, where he spent his high school years as a foreign exchange student. He then attended the College of the Holy Cross in Worcester, Massachusetts.

On 2 September 2011 Jarosław was seriously injured riding his motorcycle after colliding with a SUV in Stropkowo near Sierpc. His injuries included a broken spine and dozens of fractures; and he was still undergoing corrective surgeries in July 2015.

He married Ewelina Jachymek in a civil ceremony in 2012, and in a convent in 2013. Their son Wiktor was born in March 2014, becoming the twelfth grandson of Lech Wałęsa.

In the European Parliament election June 2009, he became a member of the European parliament. In 2014, he was re-elected.

He lost his brother, Przemyslaw, (born 1974), Lech Wałęsa's third son, a border guard, who lived in the Morena district in Gdańsk, on 8 January 2017.

Wałęsa became the new head of the Civic Institute, said to be the think tank of Civic Platform, a Polish political party, on 16 June 2015.