Ian Humphreys will return to Ulster in the summer having signed a two-year contract with the province.
The 32-year-old out-half left Ravenhill in the summer of 2012 and moved to London Irish where he made 38 appearances, scoring 212 points.
Speaking about his decision to return to Ravenhill, Humphreys said: “I have loved my time at London Irish but when the unexpected opportunity to come home arose, it was a very easy decision to make. My wife and I are very much family people and we enjoy being in Northern Ireland.
"It is exciting to be coming back to Ulster, to be part of a squad that is challenging in Europe" - Ian Humphreys
“It is exciting to be coming back to Ulster, to be part of a squad that is challenging in Europe and that is at the top of the RaboDirect PRO12 every year.
"As well as a strong team, Ravenhill has been transformed since I left two years ago. Everyone in the Premiership has heard about it and seen pictures of the new facilities. It is just phenomenal how good the new stadium is.
“I am realistic. I know that [rival fly-half] Paddy Jackson is one of the best young players in Ireland, but I am competitive. It is up to me to push him and hopefully that will bring out the best in both of us.”
Humphreys played for Ulster at U-21 level as well as representing Ireland at U-19 and U-21 level before moving to the Premiership to join Leicester Tigers.
Following three seasons at Welford Road he returned to Ravenhill in 2008 and made 110 appearances for Ulster scoring 617 points.