The 25-year-old loose head believes the Liberty Stadium is the best place to progress as a player as he looks to add to his tally of 13 Wales caps, the most recent of which came in the RBS 6 Nations opener with Italy last month.
"There was no other option to consider: I wanted to stay here as it's the environment that I think is best for me and my long-term ambitions," said Bevington.
"I've been an Osprey since I was 15, this is my home and where I was born and bred, so I'm happy to be here. I want to play for the Ospreys for as long as I can. We are ambitious and we want to do well as a team and I think that, with the young group of players we have here, we can grow as a team over the next few years.
"There has always been real competition for places in the front row here and that hasn't changed, with some real quality boys coming through and the likes of Duncan (Jones), who has taught me so much. The challenge for me is to try and get regular game time and keep improving as a player. This is the best place for me to do that."
Bevington has worn Wales colours throughout the age-grade ranks and played in a brace of World Junior Championships before making his senior debut against the Barbarians in 2011. He came on as a late replacement for Paul James against the Italians four weeks ago but has since been released back to his region for treatment on a groin problem.
The Ospreys have high hopes for his future, though, and he will be confident of adding to his international tally when Wales head to South Africa for a two-Test tour in the summer.
"Ryan has all the attributes to go on and have a hugely successful career. He's got amazing athletic ability and has already got a huge amount of experience for a young prop," said the Ospreys' rugby operations manager Andy Lloyd.
"The challenge for him now is to kick on and turn his undoubted potential into something more than that. Potentially, he can be whatever he wants to be in terms of his rugby, it's about making sure that he does that on a consistent basis now, through hard work on and off the field. We've seen him pull out some top drawer performances in an Ospreys shirt, now we want to see that from him week in, week out."
Bevington follows the likes of Alun Wyn Jones, Sam Lewis, Eli Walker, Ashley Beck, Jonathan Spratt, Ben John and Dmitri Arhip in committing his future to Steve Tandy's team, while Newport Gwent Dragons pair Dan Evans and Sam Parry and Fijian centre Josh Matavesi have all been signed for next season.