Wests Tigers and Robbie Farah took part in a special celebration on Friday to mark National Harmony Day.

Farah joined more than 500 students from across Western Sydney to celebrate the occasion at the fourth annual NRL Harmony Day Festival, held at Merrylands Oval.

The students took part in a special Harmony Walk around Merrylands Oval, with Farah leading the march.

All the students in attendance have recently completed the NRL's 'In League In Harmony' community program, wich aims to promote social cohesion amongst communities.

The NRL's Harmony Day Festival coincides with this week's NRL round - Play NRL Round.