Fossilbrook is a rural locality in the Shire of Mareeba, Queensland, Australia.

[2] In the 2021 census, Fossilbrook had "no people or a very low population".

[3] Fossilbrook Provisional School opened in 1908.

[4] In the 2016 census, Fossilbrook had a population of 5 people.

[5] In the 2021 census, Fossilbrook had "no people or a very low population".