The 72-year-old actor has become known for his tough guy roles over the years since starring in 2008 thriller Taken but Neeson fears his days of rough-and-tumble roles are coming to an end and he wants to bow out before he's unable to convincingly throw a punch.
He told PEOPLE: "I'm 72 - it has to stop at some stage. You can't fool audiences. I don't want (longtime stunt collaborator Mark Vanselow) to be fighting my fight scenes for me."
Neeson went on to set out a timetable for his action movie retirement, adding: "Maybe the end of next year. I think that's it."
He is set to show off his comedy chops in his next movie - a reboot of Leslie Nielsen's police comedy The Naked Gun - but Neeson isn't sure whether he will be able to swap action for funny roles going forward.
He said: "Whether I can carry it or not, I honestly don't know."
In the interview, Neeson also revealed how his part in the Taken franchise has infiltrated every part of his life - confessing a clerk at a New York court started reciting his speech from the first film when releasing him from jury dury.
He said: "(The clerk is)calling, I don't know, 55, 60 of us. He gets to me, but all I'm hearing is, 'I have a particular set of skills. Skills that would make me ...'
"And I thought, 'Oh f*** no' ... It was actually really sweet and flattering. As I was leaving, people started to applaud."
Neeson previously revealed he felt nervous about taking on the role of Frank Drebin Jr - the son of Leslie Nielsen's protagonist Detective Frank Drebin from the original Naked Gun films - and is wary of the expectation that comes with reviving the spoof comedy franchise.
Neeson told MovieWeb.com: "I've done a couple of, like, TV skits with Stephen Colbert and Ricky Gervais, but those were two minutes, three minutes tops. But I'm a bit nervous about Naked Gun, because it's a feature film ... There's lots of funny gags, lots of funny visual gags happening at the same time while 'serious things' are being discussed, you know? ...
"It's not a remake. It's a reboot. It's a totally different thing ... I'll do my own thing. I remember Leslie very well. I love those films. Especially that first, (Flying High) You know, 'Don't call me Shirley'. Just that line alone ... changed Leslie's career up until he passed away."
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