"We decided some time ago that Duncan was the man to lead us into what will be a big season for the Ospreys," coach Jones said. "He led Wales with distinction in Argentina and has already proven to be a fine Ospreys Captain when he stepped up last season.
"He leads by example both on and off the field, knows how to read a game, has sound judgement and has respect throughout the squad."
"It is an honour to be asked to Captain the Ospreys, although I am fortunate to have already stood in last year following Barry's injury," said Jones. "We have a mix of youth and experience and I will get a lot of help as we have decision makers throughout the side.
"The region has shown its ambition with strong signings and with the boys returning from long term injury I am sure supporters will see a strong Ospreys side next season.
"Last year we worked hard as a group and things started to come together towards the end of the year, but we will enter next season in a confident frame of mind."