MallowbyNames

Thetis

THEE-tis · Of uncertain origin, possibly related to the Greek word 'tithemi' meaning 'to set, place' or a pre-Greek name.

Peak popularity
1914
Usually for
Girls
Trend
Holding steady

Holding steady.

Popularity of Thetis since 1914

Babies named Thetis per year in U.S. Social Security records.

3710192019602000Most births 1915Girls
Data table (by decade)
DecadeGirls
1910s47
1920s72
1930s10
1940s18
1950s0
1960s0
1970s0
1980s0
1990s0
2000s0
2010s0
2020s0

Meaning & origin

Thetis is a rare mythological name, first recorded in U.S. Social Security data in 1914. Despite its ancient roots, it has never achieved widespread popularity; its peak year of usage was also 1914, with no subsequent rank data. The name's trajectory shows a stable but extremely low level of use over the past century. Thetis is almost exclusively given to girls. While it has not been recorded in any top states, its association with Greek mythology gives it a classic, scholarly appeal for parents seeking a distinctive name with historical depth.

Thetis is a figure from Greek mythology, a sea nymph and mother of Achilles. The name's etymology is debated; it may derive from the ancient Greek verb 'tithemi' (to set, place) or have pre-Greek origins. The name has been used occasionally in English-speaking countries since the early 20th century, likely inspired by mythological references.

Nicknames & variants

Variants: Thethis

Sibling names for Thetis

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

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

T is for Thetis, our favorite little girl.

T is for Thetis…”

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

Make Thetis's book

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

Questions parents ask

What does the name Thetis mean?
The meaning of Thetis is uncertain. It is the name of a Greek sea nymph, mother of Achilles, and may derive from a Greek word meaning 'to set' or from a pre-Greek source.
How popular is the name Thetis?
Thetis has never ranked among the top 1,000 names in the U.S. According to Social Security data, it was first recorded in 1914 and has seen minimal usage since, with no recent rank data available.
Is Thetis a boy or girl name?
Thetis is almost exclusively used as a girl's name, based on its mythological origin as a female sea nymph.