Speaking on the new deal, the Dubliner said:
"I am delighted to be signing for Connacht next season. I have worked under Eric and Dan in my Ireland U20 days so I have first hand experience of how passionate they are about the club and also how ambitious they are so I am very excited by this challenge.
I will obviously miss the lads and the back room staff at Leinster as I have been here since my academy days, however Connacht is a new chapter in my rugby career that I am very excited about"
Head Coach Eric Elwood:
"We're delighted Paul is joining us, I've known Paul since he starred for the Ireland U20's in '07 and I believe he's a top class player and very capable of the standard required in the Magners League and European competitions. He's a young dynamic scrumhalf and will fit very nicely into our setup here."