Colby

Colby most often refers to:
 * Colby (given name), a list of people
 * Colby (surname), a list of people
 * Colby cheese (originally 'Colby Cheddar'), a type of cheese made from cow's milk
 * Colby-Jack, a mixture of Colby and Monterey Jack cheeses

Colby may also refer to:

British Isles

 * Colby, Cumbria, UK
 * Colby, Norfolk, UK
 * Colby Woodland Garden, Pembrokeshire, UK
 * Colby, Isle of Man

United States

 * Colby, Kansas, a city in Kansas
 * Colby, Ohio, an unincorporated community
 * Colby, Wisconsin, a city in Wisconsin
 * Colby (town), Wisconsin, a town in Clark County
 * South Colby, Washington, an unincorporated community
 * Colby College, a liberal arts college located in Waterville, Maine

Geography

 * Colby Lake (Chisago County, Minnesota)
 * Colby Lake (Washington County, Minnesota)
 * Colby Mountain (Tuolumne County, California)

Culture

 * Colby, a Franco-Belgian comic series from Michel Blanc-Dumont and Greg

Television

 * The Colbys, the TV series, aired from 1985 until 1987 on ABC
 * Colby's Clubhouse, the Christian TV series, aired from 1984 until 2000 on Trinity Broadcasting Network

Other uses

 * Colby, the ball in Bando (sport)
 * Colby Nolan, a cat
 * The Colby meteorite of 1917, which fell in Wisconsin, United States (see meteorite falls)