However, he unfortunately suffered a knee injury in training following that game and was sidelined until he made his comeback against Scarlets in the LV= Cup towards the end of January.
First team opportunities have been limited in recent weeks, so the move to Headingley will give the New Zealand born fly half a chance to get some valuable game time.
He moves on loan for the rest of the season but Gloucester can recall him at any time should the need arise.
Leeds Carnegie Director of Rugby Chris Gibson said:
"We are delighted to have secured the services of Jonny Bentley. He is someone we have monitored for a long time but unfortunately for him, he had suffered injuries earlier in his career.
"He is now fully fit and keen to show what he can do and we are pleased to bring in a player of his quality and desire into our existing group. He knows a good number of our squad from his time at the Pirates and will have benefitted from his time with Gloucester and playing for a Premiership side."
"It has been great to meet the boys this week and I am looking forward to settling in and helping the team where I can. Leeds are going well this year and are right up there pushing for promotion.
"I was impressed with the ambition the club has and, if I can help the club achieve their goals whilst I am here on loan, then it will be a great result for everyone."