The actor told The Huffington Post that in reality he is nothing like the dry-witted, anti-government civic worker he plays on the NBC sitcom.
"[The confusion is] definitely one of the strange aspects of having a character hit a level of popularity like this, but I quickly reassure anyone who asks that they're talking to a fully rounded-human being and not a hilarious, fictional television character," Offerman quipped.
Offerman also insisted that he doesn't encourage male fans to grow their own versions of Ron Swanson's infamous moustache.
"It seems to me like a lot of it is ironic and I don't approve of that," he teased.
"I would prefer that everyone grow as much facial hair as possible in as sincere a manner as possible and I hope that, as we continue to evolve as a species, we all allow our fellow members of the human race of either sex to grow as much of it as they deem necessary."
Offerman recently compared Parks and Recreation to a "delicious meal".
Parks and Recreation returns for a fifth season this fall.
Watch a clip from Parks and Recreation below: