Bowdoinham is a town in Sagadahoc County, Maine, United States.

Bowdoinham was included in the Lewiston-Auburn, Maine metropolitan New England city and town area.

Fort Richmond was built upriver in 1719, protecting the area and encouraging British settlement.

But during Dummer's War, in the summer of 1723 all buildings in the region were burned and cattle killed by the Norridgewocks and their 250 Indian allies from New France.

William Dummer's Treaty of 1725 brought peace, it was resettled about 1730 by Abraham and Jonas Preble from York.

On July 3, 1637, Sir Ferdinando Gorges, the lord proprietor of Maine, had granted this part of New Somersetshire to Sir Richard Edgcumbe of Mount Edgcumbe House, situated at Cremyll in Cornwall, England.

The contested ownership went to court, whereupon Bowdoin won because Edgcumbe's grant was found obsolete and indefinite.

[4] On September 18, 1762, the Massachusetts General Court incorporated it as Bowdoinham, named for William Bowdoin.

Shipbuilding was an important early industry which faded over time, with the first vessel launched in 1768, and the last of any size in 1912.

Once a site of wharves to ship lumber and other goods, Cathance Landing became the town's business center called Bowdoinham Village.

It borders the towns of Richmond to the north, Bowdoin to the west, and Topsham to the south.