Meaning and name origin
Colby \c(o)-lby, col-by\ as a boy's name is pronounced KOHL-bee. It is of Old Norse origin, and the meaning of Colby is "swarthy person's settlement". From the personal name Koli (from "kol" meaning "charcoal"). There was a 1980s television series "The Colbys". See also Kolby.
For more information, see also the related boy name Colton.
Colby is a somewhat popular first name for males (#703 out of 1220, Top 58%) and an even more popular surname or last name for all people (#2642 out of 88799, Top 3%) (2000 U.S. Census).
Displayed below is the baby name popularity of the name Colby for boys. Colby reached its highest rank of #99 in the U.S. in 2001. (2014 statistics).
Displayed below is a comparison of the popularity of the boy name Colby and its variant forms. Popular variation forms ranked in the Top 1000/100 are Colton (#65), Colby (#428) and Kolby (#779). (2014 statistics).