Facebook has been dragged into a racial discrimination case involving three Queensland university students.

Federal Circuit Court Judge Michael Jarrett on Monday ordered the social media giant be subpoenaed for information on the account details of a Queensland University of Technology Student accused of making a racist comment online.

QUT student Calum Thwaites claims a racist post was not written by him and came from a fake account. Credit:Reuters

He ordered the subpoena be sent to Facebook's international headquarters in Dublin, along with 100 euros to cover international postage fees.

Calum Thwaites has denied being responsible for a two-word racist post among a 2013 Facebook thread about three students being asked to leave an indigenous-only computer lab.