Matthew Dinham (born 9 April 2000) is an Australian cyclist, who currently rides for UCI WorldTeam Team Picnic PostNL.

Dinham became an Australia citizen in 2017 a few weeks before he represented Australia at the UCI Mountain Bike World Championships[1] Dinham sprinted to seventh at the UCI World Under-23 Championships Road race in 2022.

[8][9] The race plan for Dinham involved going into the early break and take some of the pressure off Michael Matthews.

When the favorites caught his breakaway, Mathieu van der Poel attacked.

Dinham was the only rider from the break to be able to follow, he joined the likes of Wout van Aert and Tadej Pogačar.