The ungainly mutt beat out 29 other dogs for the title Friday, The World's Ugliest Dog Contest said in a release announcing the results.
The runner-up was a Chinese Crested, a small breed with facial hair that has dominated the competition for some time.
"This dog looked like he's been photo shopped with pieces from various dogs and maybe a few other animals," Brian Sobel, one of the judges, said of the winner.
Tammi Barbee, who adopted Walle when he was 3 months old, said she gets a lot of comments when she takes him out in public.
"People come up to me and say that dog is not right, but I love him," she said.
The contest was held at the Sonoma-Petaluma Fair in California's Marin County.
Walle won $1,500 plus appearances on NBC's "Today" show and ABC's "Jimmy Kimmel Live."