Leendert Arent-Willem de Lange (born 13 November 1972) is a Dutch politician.

De Lange was alderman in Noordwijk between 2006 and 2013 and in Wassenaar between 2013 and 2014 where he also served as deputy mayor.

[1] From 11 February 2013 until 1 June 2014, he was alderman and deputy mayor in his birth town of Wassenaar.

[2] In the parliamentary elections of 2012 De Lange occupied place 53 on the candidate list of the People's Party for Freedom and Democracy.

On 31 March 2015, he entered the House of Representatives of the Netherlands when he replaced René Leegte who had resigned.