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Popular Colby Names

10,020 results for people with the last name Colby in the United States

Top 10 Male "Colby" names
Top 10 Female "Colby" names
Where are all the Colby families located? Find the top states with the most Colby last names.
Did you know that Phoenix, AZ has the most Colby family names in the US? Find top cities below.