Other
- The colby is the name of the ball in the sport of bando.
- Colby cheese (originally 'Colby Cheddar'), a type of cheese made from cow's milk
- The Colbys, TV series
- Colby Nolan, cat
- Maximillian Colby, band
- The Colby meteorite of 1917, which fell in Wisconsin, United States (see meteorite falls)
- Colby's Clubhouse, Christian TV series
- Colby (Comic), a Franco-Belgian comic series from Michel Blanc-Dumont and Greg
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