MallowbyNames

Octa

OK-tuh · Of uncertain origin; possibly a feminine form of Octavius, meaning 'eighth'.

Peak popularity
1885
Usually for
Girls
Trend
Holding steady

Holding steady.

Popularity of Octa since 1885

Babies named Octa per year in U.S. Social Security records. Raw births topped out in 1915, but relative to how few babies were recorded back then, Octa's real moment was 1885.

5914192019602000Most births 1915Girls
Data table (by decade)
DecadeGirls
1880s20
1890s22
1900s28
1910s50
1920s34
1930s0
1940s6
1950s0
1960s0
1970s0
1980s0
1990s0
2000s0
2010s0
2020s0

Meaning & origin

Octa is a rare and unusual name that first appeared in U.S. birth records in 1885 with a single birth that year. It has never ranked in the top 1000 for any decade, and as of 2025, its usage remains negligible. The name is likely a feminine variant of Octavius, derived from the Latin 'octavus' meaning 'eighth', though its exact etymology is uncertain. Octa has no recorded usage in any U.S. state with enough frequency to list, and it has remained stable in its rarity over the past century. For parents seeking a truly distinctive name with a classical root, Octa offers an obscure choice.

Octa is likely a feminine diminutive of Octavius, a Roman family name derived from the Latin 'octavus' meaning 'eighth'. It has been used sporadically in English-speaking countries since the 19th century, possibly as a variant of Octavia or a standalone name. Its rarity contributes to its uncertain derivation.

Nicknames & variants

Variants: Octavia, Octavie

Sibling names for Octa

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

Sisters: Ada, Clara, Ida, Lena, Nora

Brothers: Cyrus, Felix, Julius, Otis, Silas

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

O is for Octa, our favorite little girl.

O is for Octa…”

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

Make Octa's book

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

Questions parents ask

What does the name Octa mean?
The meaning of Octa is uncertain; it may derive from the Latin 'octavus' meaning 'eighth', but this is not well-attested.
How popular is the name Octa?
Octa is extremely rare. It first appeared in U.S. records in 1885 with a single birth that year, and it has never ranked in the top 1000. As of 2025, it has not gained significant usage.
Is Octa a boy or girl name?
Octa is typically considered a girl's name, though it has not been widely used for either gender.