Omega is of Greek origin and means "the last letter of the alphabet". It was first used as a given name during the 20th century, often among families who were interested in mysticism or esoteric traditions. This name has been popularized by various characters in literature, movies, and comics, such as the Omega Man in the novel by Richard Matheson.
"The name Omega experienced significant growth in popularity from the late 20th century onwards, with a noticeable spike starting in 2014 and peaking in 2019 and 2022."