QPR are on the lookout for a new head coach following the dismissal of Chris Ramsey on Wednesday evening.
Neil Warnock has been placed in temporary charge of Rangers, and former QPR striker Gallen believes that the London outfit should look at Jackett as a long-term option.
"It's a good club, there's always money to spend on players so it's an attractive proposition for any manager, but I'd love to see Kenny Jackett get the job," the Englishman told Sky Sports. "He's done a great job at Wolves after they got relegated (to League One) a few years back.
"They had players on a lot of money, and he pushed them to the side and brought on the younger players and they got promoted straight away and only just missed out on the play-offs last season.”
Jackett has been in charge of Wolves since 2013 and has done a truly remarkable job at Molineux.
Wolves narrowly missed out on a Championship playoff spot last season and are expected to challenge for a top-six finish this campaign.
It does not appear feasible that Rangers will be able to get Jackett rightaway, and it would make sense for the London outfit to carry on with Warnock for now.
QPR are 13th in the Championship table at the moment with 19 points from 15 matches, six points behind sixth-place Birmingham City.