Dark-haired or coal-black
Derived from an Old Norse surname, it originally referred to a farmstead belonging to a person named Koli. The name Koli itself is a nickname for someone with dark features, stemming from the word for coal.
About 165 boys were named Kolby in 2025.
US births per 5-year period, 1990–present (SSA data).
NFL wide receiver
Country music singer-songwriter
Major League Baseball pitcher
The same feel as Kolby — far less common.
Hidden gems that stand out.
