Robert Hallowell Gardiner (February 10, 1782 – March 22, 1864[1]) was a prominent, educated land owner in Maine.

Robert Hallowell Gardiner was born to loyalist refugees from America in Bristol, England in 1782.

He graduated from Harvard College and moved to Kennebec in 1803 to manage the land he had inherited.

Only two houses stood on Church Hill, and no carriage road led out of town in any direction.

He endowed, and laid the cornerstone of, Christ Church; the building is one of the state's most beautiful granite structures.