Allan Arenfeldt Olesen (born 20 May 1982) is a Danish professional football player in the defender position.

He made his Danish Superliga debut for Brøndby in September 2000, and went on to play 47 league games for the club until May 2004.

[4] He was named 2000 Danish under-19 Talent of the Year, and represented Denmark at the 2001 European Under-19 Championship, playing three games at the tournament.

[4] He made his Danish under-21 national team debut in April 2002, and went on to play 15 games and score one goal for the under-21 selection until November 2003.

In February 2010, Olesen signed a one-year contract with Norwegian Premier League club Haugesund FK.