Elsie, 4, loves the Bulldogs like her mum and dad while Paddy Vesey, 4, favours the Cats "because they keep on winning a little bit".

But no matter what your football code or colour, the Fight Cancer Foundation is calling on schools, groups and clubs to unite to support kids with cancer this September.

Albury Preschool educational leader Jo Barton said the centre had supported the Footy Colours Day for the past five years.

The event will kick off on September 23 with six classes of preschoolers dressing up in footy colours throughout the week ahead of the AFL grand final.

Ms Barton said the new regional cancer centre further highlighted the importance of fundraising and awareness of the cause.

"It's also a good way to teach our kids about empathy for others and do something for the local community," she said.

The Fight Cancer Foundation is encouraging all Australians to join the Footy Colours Day team and wear their footy colours to support kids with cancer this September.

On average, kids with cancer miss out on more than six months of school which makes it difficult to keep up with their peers.

The Fight Cancer Foundation works with families, major paediatric hospitals and schools to develop individual learning plans that meet the educational, social and welfare needs of each child.

This helps to reduce the long-term impact of cancer and make sure these young learners can reach their full educational potential.

Footy stars from all codes across the nation have united as ambassadors to help kids with cancer continue their education during treatment and recovery.