Gábor Demjén (born 1 March 1986 in Szob) is a Hungarian footballer who currently plays for Abahani Limited.

Demjén started his career as a trainee in the youth team of Újpest FC.

In 2005, he decided to move with the chairman of the Romanian club Marius Vizer to the Hungarian first division outfit FC Sopron.

After two years of success with the club, he moved on to the Nemzeti Bajnokság I treble champion Debreceni VSC in the 2007–08 season where he managed to win the Hungarian Cup.

This biographical article related to association football in Hungary, about a midfielder, is a stub.