Robert Mathias is a Papua New Guinean professional rugby league footballer who plays as a or forward for the London Broncos in the RFL Championship and at international level.
He previously played for the PNG Hunters in the QLD Cup.
He played for the Papua New Guinea Hunters in the 2024 and 2025 Queensland Cup seasons.
On 10 November 2025 it was reported that he had signed for the London Broncos in the RFL Championship.
Mathias made his international debut for in their 22âÂÂ10 victory over Fiji Bati in the 2024 Pacific Test.