The Charles Baker House is a historic house at 107 Adams Street in Waltham, Massachusetts. The 2-1/2 story wood frame house was built c. 1880, and is a rare example of a worker's boarding house built for employees of the Waltham Watch Company. It is also one of the city's finest Stick style houses, with a decorated side entry porch, bracketed eaves and gables, and applied Stick style decoration in the gable points. Its first owner, Charles Baker, was a company employee, and lived here until about 1912. The house was listed on the National Register of Historic Places in 1989.