The 32-year-old who was born in Abercynon is a solid choice for Director of Rugby Lyn Jones, after impressing with his leadership skills last season.
Commenting on his announcement, Director of Rugby Lyn Jones said: "Rhys has made a real impression with everybody here at the Dragons.
"Being a tough, mature and consistent performer has made him an excellent choice as a role model and as our Skipper.
"Both strong and positive are key skills of leadership that is absolutely critical for our squad maintaining its growth."
The Dragons' newly appointed Skipper, T. Rhys Thomas added: "I am truly honoured to have been selected as Captain for the coming season. I thoroughly enjoyed leading the team last year, with the challenge being to guide young Gwent talent to the next level.
"There has been a massive change in the squad attitude and the standard at the Dragons since I arrived in 2013 and I am excited about our prospects for next season."
To see T. Rhys Thomas in action as the 2015/16 Newport Gwent Dragons Captain purchase your Season Ticket by emailing ticketing@rodneyparadeltd.com or by calling the Ticket Office on 01633 674990.
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