Adams Bros Co. was an American automobile manufacturer based in Findlay, Ohio, active during the early 20th century. The company was established by the Adams brothers and produced vehicles for a brief period from 1910 to 1911.

The sole model produced by Adams was a 30-horsepower, four-cylinder tourer, notable for its Renault-style dashboard radiator. Despite its design, the car was manufactured for only one season. Following this short production run, the Adams brothers shifted their focus to the production of commercial vehicles, which they continued to manufacture until 1916.