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:
Distance between:
London to Colby235 Miles / 378 Kms Liverpool to Colby83 Miles / 134 Kms