The name was announced Thursday morning following votes submitted by more than 14,000 people in a "Name the Cub" contest at the zoo.
There were six names to choose from in balloting conducted from Feb. 11 through March 3 — Humphrey, James, Lorek, Orson, Searik and Stirling.
“Humphrey” has also been given an additional Inuit name — “Piujuq” (Piu), meaning “good and nice.”
The cub will be formally documented as Humphrey Piujuq in the official registry at the zoo.
Humphrey lives with three adult polar bears at the zoo: his mother Aurora, father Inukshuk and aunt Nikita.