Blease is an uncommon given name of American origin, derived from Old Norse elements 'blæsi' meaning 'blossom' and 'æsi' meaning 'god'. It gained popularity in the late 19th century but has since become quite rare. The name Blease was historically used as a surname before being adopted as a given name.
The name Blease experienced its peak popularity during the early 20th century, particularly between 1913 and 1915, with a high of 20 births in 1913. However, by the mid-20th century, its usage significantly declined, with most years recording fewer than 10 births, and some as low as 5 or 6. Overall, between 1911 and 1961, there were a total of 201 babies named Blease.