Template:MEpO


 * Oakfield Plantation (Aroostook Co.) organized from T5 R3 WELS in 1856; incorporated as the Town of Oakfield, Maine in 1897.
 * Orangetown Plantation (Washington Co.), aka Number 12 ED Plantation, incorporated as the Town of Whiting, Maine in 1825.
 * Orient Plantation (Aroostook Co.)
 * Osborn Plantation (Hancock Co.)
 * Ossipee Plantation (York Co.)
 * Otisfield Plantation (Cumberland Co.)
 * Oxbow Plantation (Aroostook Co.)
 * Oxford Plantation (Oxford Co.)
 * Oxford Plantation (Penobscot Co.)