Glennis

Meaning & origin

Glennis is a name of debated origin, with possible roots in Welsh, Scottish, or English naming traditions. It first appeared in U.S. records in 1912, a time when similar-sounding names like Glenn and Glenna were also gaining traction. The name reached its highest popularity in 1939, aligning with a peak for many classic feminine names of that era. Since then, its usage has declined, becoming a rare choice in recent decades. While the Social Security Administration has not reported a 1-in-N incidence for Glennis, its trajectory suggests it remains in very infrequent use. The name's steady but low presence makes it a distinctive option for parents seeking an uncommon yet historically rooted name.

Glennis emerged in the late 19th century as a feminine name, likely influenced by the Welsh name Glenys, derived from 'glân' meaning 'clean' or 'holy.' Alternatively, it may be a Scottish or English elaboration of Glenn, from Gaelic 'gleann' meaning 'valley.' The name saw a rise in popularity in the early 20th century, particularly in the United States, peaking in 1939.