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Thelbert
How to Pronounce Thelbert
Pronounced THEL-burt /ˈθɛl.bərt/Medium
Meaning: Thelbert is an early-twentieth-century American name usually read as a shortened Ethelbert - from the Old English aethel, 'noble', and beorht, 'bright' - or as a blend with Delbert and Adelbert. Its exact make-up is uncertain, but the -bert element reliably carries the sense 'bright'.Low
Popularity in the U.S. · SSA data
U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.
SSA data updated May 2026. How we source & verify this data.
History & Origin
Thelbert is an early-twentieth-century American name best explained as a clipped Ethelbert, from the Old English aethel, 'noble', and beorht, 'bright', or as a blend with the popular Delbert and Adelbert. Such -bert names flourished in the 1900s and 1910s, and Thelbert appeared as one of their rarer members.
Thelbert was never common - only a few dozen boys a year at its faint peak around 1921, within its early-century span. It reads as a genuine period name, tied to the -bert vogue of its day, and it has not returned in modern American use.
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Frequently Asked
What does the name Thelbert mean?
Thelbert is a vintage American name, read as a clipped Ethelbert or a blend with Delbert, from Old English for 'noble-bright'.
How do you pronounce Thelbert?
It's said THEL-burt /ˈθɛl.bərt/ - two syllables, stress on the first.
Is Thelbert a boy or girl name?
Thelbert is used as a boy's name.
How popular is Thelbert?
Thelbert has always been rare, an early-twentieth-century -bert name that never spread widely.