The Cork-born player is a regular either on the wing or at full-back, and this season has added another string to his bow by playing at inside centre.
The 29-year-old made his Munster debut in May 2006 against Llanelli Scarlets and his first Heineken Cup appearance followed against Gloucester in the 2008 quarter-final at Kingsholm. He was capped by Ireland against USA in June 2009.
Kildare man Johne Murphy joined Munster at the start of the 2010/11 campaign after five seasons with Leicester Tigers. He made his debut against Aironi at Musgrave Park in September 2010 and a month later lined out against London Irish in the Heineken Cup.
The 29-year-old has made 79 appearances and scored 12 tries for the province, playing at centre, full-back and on the wing.
Munster have also confirmed the signing of Dublin University prop Martin Kelly on a one-year development contract.
The 24 year-old tighthead represented Leinster 'A' this season and was most recently involved in their British & Irish Cup quarter-final victory over Munster 'A' at the start of April.
Ian Nagle, who is currently on loan to Newcastle Falcons, will finish with Munster at the end of the current season.
Despite being offered a Munster contract, the 25-year-old lock has opted to look further afield for his career progression. Nagle, a product of the Munster Academy, made 29 appearances for the province.