Gardiner is a city in Kennebec County, Maine, United States. The population was 6,198 at the 2000 census. Popular with tourists, Gardiner is noted for its culture and old architecture.
Located at the head of navigation on the Kennebec River, Gardiner was founded as Gardinerstown Plantation in 1754 by Dr. Silvester Gardiner, a prominent Boston physician. Dr. Gardiner had made a fortune as a drug merchant, with one apothecary shop in Massachusetts and two in Connecticut, and became a principal proprietor of the Kennebec Purchase within the old Plymouth Patent. He proved a tireless promoter for his development, which once comprised over 100,000 acres (400 km²).
Dr. Gardiner induced a gristmill builder, saw millwright, house carpenter and wheelwright to settle here. Houses, mills, a church and a blockhouse were built. Situated at the confluence of the Kennebec River and Cobbesseeconte Stream, which has falls that drop 130 feet over a mile, the location was recognized by him as ideal for water-powered mills. Gardinerstown, set off from Pittston in 1760, became center of the regional economy.