Alen Halilović (born 18 June 1996) is a Croatian footballer currently playing for Dinamo Zagreb in the Prva HNL. His father is Sejad Halilović, former Croatia and Bosnia and Herzegovina international.
Halilović started his career playing at youth level for his hometown club Dinamo Zagreb. In June 2012, he signed a professional contract with Dinamo. On 27 September 2012, he made his debut for the first team in a 3--1 win over Hajduk Split, when he replaced Sammir for the final ten minutes of the match. This made him the youngest debutant in the history of Dinamo Zagreb, at the age of 16 years and 102 days (5946 days). In the next round match against Slaven Belupo, he again came off the bench and scored the final goal in a 4--1 victory. This made him the youngest goalscorer in the history of the league, at the age of 16 years and 112 days (5956 days), breaking the record set in November 2010 by his teammate Mateo Kovačić.