Colby

“Coal town, or Koli's settlement” — Old Norse origin

Girl's name · #2822 in the US (2025) · Timeless

Colby has appeared in US records since 1950 — best rank #1030 (1985) · 4,184 babies named Colby all-time · 1 in 25,000 girls born in 2025.

Around the world: about 1 in 16,000 girls in Canada (2024).

Appears in 2020-2025 birth records of 2 states. See the full state-by-state map on this page.

Famous Colbys

Among 120 notable people named Colby:

Athletes appear 2.9× more often than among typical names — e.g. Colby Barnett, Canadian soccer player.

Browse more girl names — popularity, trends and eras for 5,700+ American names, free.