MallowbyNames

Thelbert

THEL-bert · Of uncertain meaning; possibly a variant of Delbert or Elbert.

Peak popularity
1913
Usually for
Boys
Trend
Holding steady

Holding steady.

Popularity of Thelbert since 1908

Babies named Thelbert per year in U.S. Social Security records. Raw births topped out in 1921, but relative to how few babies were recorded back then, Thelbert's real moment was 1913.

112132192019602000Most births 1921Boys
Data table (by decade)
DecadeBoys
1900s10
1910s153
1920s230
1930s216
1940s157
1950s91
1960s38
1970s19
1980s17
1990s0
2000s0
2010s0
2020s0

Meaning & origin

Thelbert is a rare masculine name that appeared in U.S. birth records in 1908 and saw its peak usage in 1913, though even then its numbers were minimal. The name never ranked among the top 1000 names, reflecting its status as an uncommon choice. It has remained stable over the decades, with sporadic use continuing into 2025. Thelbert may be a variant of names like Elbert or Delbert, which themselves derive from the Old English Æthelberht. Its scarcity makes it a distinctive option, though its meaning is uncertain due to lack of historical records. The name's trajectory shows a consistent but negligible presence, predominantly in the early 20th century.

Thelbert is a rare given name that first appears in U.S. records in the early 20th century. It is likely a variant of Delbert or Elbert, which themselves are derived from Old English names such as Æthelberht (meaning 'noble-bright'). However, the specific coinage of Thelbert is unattested in historical sources, so its meaning is uncertain.

Nicknames & variants

Nicknames: Thel, Bert

Sibling names for Thelbert

Names that share Thelbert's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

T is for Thelbert, our favorite little boy.

T is for Thelbert…”

In a Mallowby alphabet book, Thelbert's letter becomes Thelbert's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Thelbert's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Thelbert mean?
Thelbert is of uncertain meaning, possibly a variant of Delbert or Elbert, which mean 'noble-bright'.
How popular is the name Thelbert?
Thelbert has not ranked in the top 1000 U.S. names since the Social Security Administration began tracking. Its peak usage was in 1913, but it remains rare.
Is Thelbert a boy or girl name?
Thelbert is almost exclusively used as a masculine name.