John Frank Hamann (born November 27, 1962), better known as the Milverine, is an American man known for his resemblance of the comic book and film character Wolverine while walking shirtless in his hometown of Milwaukee, Wisconsin.

[3][4] Hamann began taking daily two-to-three-hour speed walks in Milwaukee around the early 2000s, going shirtless in weather above 60 °F (16 °C).

[1][2][4] He attracted notice for his muscles and hairy chest—making him resemble Wolverine portrayer Hugh Jackman of the X-Men film series—but was unaware of his celebrity until others made pages about him on social media.

[2] In November 2018, the Walker's Point brewery MobCraft Beer produced a milk stout called "Moo-Waukee" emblazoned with Hamann's image.

[6] Vice Media released a nine-minute documentary about Hamann, "Wisconsin Legend 'Milverine' Has Never Left Milwaukee", in February 2020.