The Berlin Busy Bees (also known as the Berlin Green Sox and the Berlin Dutchmen) were a minor league baseball team in Berlin (renamed as Kitchener), Ontario that played in the Canadian League from 1911 through 1913. The league was classified as Class D in 1911 and as Class C from 1912 through 1913. The team's owner from 1911 to 1912 was William J. "Pop" Williams; in the winter of 1912–13 he sold the team for $2,000 to the Twin Cities Athletic Association, headed by Dr. F. H. Kalbfleisch. The team played its home games in Victoria Park.