Forest Paper Company was a pulp and paper mill on the Royal River in Yarmouth, Maine, United States, which was in business between 1874 and 1923. It was the first of its kind in New England. In 1909, it was the largest such mill in the world, employing 275 people. It produced 80 tons of poplar pulp each day.

Yarmouth is a town in Cumberland County, Maine, United States, twelve miles north of the state's largest city, Portland. When originally settled in 1636, as North Yarmouth, it was part of the Massachusetts Bay Colony, and remained part of its subsequent incarnations for 213 years. In 1849, twenty-nine years after Maine's admittance to the Union as the twenty-third state, it was incorporated as the Town of Yarmouth.