Looking for girl names that start with “Th”? Thea is a short form with several possible longer names, Thalia is linked to the Greek word for “blossom,” Thora has Old Norse roots, and Thandiwe means “loving one” in Xhosa, Zulu, and Ndebele. The options below cover classic, mythological, and less familiar styles. For a broader naming framework, see our complete guide to finding your perfect baby name.
- Thalia: A Greek name meaning “to blossom,” also spelled Thaleia; associated with a Muse of comedy and pastoral poetry. Name history.
- Theodora: A Greek feminine form of Theodore, with roots meaning “god” and “gift”; Dora and Thea offer shorter forms. Name history.
- Thea: A short form of Theodora, Dorothea, Theresa, and other names; it can also stand on its own. Name history.
- Thaleia: The ancient Greek form behind Thalia, with the same “blossom” root. Name history.
- Thora: A modern form of Old Norse Þóra, connected with Þórr (Thor), rather than a direct translation of “thunder.” Name history.
- Thirza: A Dutch form of biblical Tirzah, whose Hebrew meaning is “favourable.” Name history.
- Thomasina: A medieval feminine form of Thomas, whose Aramaic root means “twin.” Name history.
- Theresa: Its origin is known, but its meaning is uncertain; proposed Greek links include “summer” and “to harvest.” Name history.
- Thaïs (Thais): An Ancient Greek name whose meaning may be “bandage.” Name history.
- Thalassa: A Greek name meaning “sea,” also the name of the sea’s personification in Greek mythology. Name history.
- Thandiwe: Means “loving one” in Xhosa, Zulu, and Ndebele. Name history.
- Thisbe: A name from an ancient Greek town, later known through the story of Pyramus and Thisbe. Name history.
Some meanings and origins are well established, while others—such as Theresa’s—remain uncertain. The individual notes below distinguish a documented root from a possible interpretation.
1. Thalia
Meaning and Origin
Thalia comes from the Greek name Thaleia, derived from thallo, “to blossom.” The meaning gives the name a growth-oriented association without promising a single interpretation for every family. See the name history.
Mythological Connections
Thalia carries a fascinating link to Greek mythology. She was one of the nine Muses, specifically the Muse of comedy and pastoral poetry. Known for bringing joy and laughter, Thalia’s role among the Muses signifies inspiration in the arts and sciences. Naming your child Thalia connects her to a figure celebrated for spreading happiness - a timeless and meaningful connection.
Contemporary Charm
Thalia is a lyrical choice with a clear link to the idea of blossoming. If current usage matters to your decision, you can analyze its popularity trends rather than rely on an older ranking.
2. Theodora
Meaning and Origin
Theodora means "gift of God". This name comes from Greek origins and is the feminine counterpart to Theodore. It’s built from the words theos (God) and doron (gift), giving it a sense of grace and significance.
Historical Significance
Theodora gives you a longer, formal-sounding name with shorter options in daily use. Thea connects it to a brief, easy-to-say form, while Dora offers a distinct alternative; the family can decide which, if either, feels natural.
Modern Appeal
If you are comparing how often names are used, check a current source rather than an old list: NameHatch’s baby-name popularity calculator can help you look up a name’s popularity.
3. Thea
Meaning and Origin
Thea is used as a short form of Theodora, Dorothea, Theresa, and other similar-sounding names. It can also stand alone, so it suits families who like a compact name without choosing a longer form. Behind the Name’s entry lists its related forms.
Cultural Significance
Thea is also the name of a character in the television series Arrow. Treat that as a pop-culture association, separate from the name’s origin.
Modern Appeal
Choose Thea if you want the option of a short standalone name or a familiar short form for a longer name. If you prefer a longer official name with nickname flexibility, compare it with Theodora before deciding.
4. Thaleia
Meaning and Origin
Thaleia is the ancient Greek form from which Thalia comes. The shared Greek root means “to blossom,” and the name is associated with the Muse of comedy and pastoral poetry in Greek mythology.
Cultural Significance
Thaleia and Thalia are two spellings of the same Greek name, not separate names with different meanings. Choose the form that looks and sounds right to your family; both keep the link to blossoming and the Muse.
Modern Appeal
If you like the classical spelling but want to avoid treating Thaleia as a different name from Thalia, use the two forms as alternatives on your shortlist and see which one feels easier to write and say.
5. Thora
Meaning and Origin
Thora is a modern form of Old Norse Þóra. That name may be a feminine form of Þórr (Thor) or a short form of other names beginning with Þór; it is connected to Norse mythology, rather than being a direct translation of “thunder.”
Historical and Mythological Roots
With its origins steeped in Norse mythology, Thora carries a sense of history and power. It’s a name that evokes strength while connecting to a rich cultural past.
Modern-Day Charm
Thora blends its mythological foundation with a contemporary vibe. Its soft, lyrical quality resonates with popular names like Cora, Nora, and Aurora, while standing out for its bold and storied background.
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6. Thirza
Meaning and Origin
Thirza is the Dutch form of the biblical name Tirzah. The Hebrew name means “favourable,” giving Thirza a clear link to its older form. Behind the Name’s Tirzah entry records that meaning.
Cultural Significance
Thirza’s journey from Tirzah highlights how names evolve across cultures. While staying true to its biblical roots, the adaptation to Thirza introduces a European touch that blends tradition with a modern twist.
Modern Appeal
Consider Thirza if you like the biblical form Tirzah but prefer its Dutch spelling. Looking at both forms side by side makes the spelling choice clear without relying on an old popularity ranking.
7. Thomasina
Meaning and Origin
Thomasina is a medieval feminine form of Thomas. Thomas comes from an Aramaic name meaning “twin,” so Thomasina carries that meaning through its root. Its longer form gives you room to use a shorter related form such as Tamsin or Tommie. Name history.
Tamsin is a related English form, while Tommie is a diminutive. These give you different ways to use a longer name, without needing to settle on a nickname before you choose Thomasina.
Cultural Significance
Thomasina is also the name of the cat in the 1963 Disney film The Three Lives of Thomasina. If a story association matters to your family, this is one specific reference attached to the name.
That film reference is one association; the name’s older form and its shorter related names are separate points to consider.
Modern Appeal
With four syllables, Thomasina has a longer sound than its related forms Tamsin and Tommie. Try the full name and its shorter forms aloud to decide which feels comfortable to use.
Thomasina gives you a longer option with related shorter forms, so you can choose the full name for formal use and decide later whether a short form suits your family.
8. Theresa
Meaning and Origin
Theresa comes from the Spanish and Portuguese name Teresa, first recorded in the form Therasia. Its meaning is uncertain; possible Greek connections include theros (“summer”) or therizo (“to harvest”). These are proposed explanations, not settled meanings. Name history.
Cultural Significance
If you like Theresa but want to compare its related forms, look at Teresa and Therasia too. The name’s uncertain meaning is a reason to choose it for its sound or family association rather than a single promised definition.
Modern Appeal
If you are exploring broader styles as well as Th names, read our guide to baby-naming trends. Treat any popularity figures you find as historical unless they come with a current source and year.
More girl names that start with Th
Thaïs (also written Thais) is an Ancient Greek name that may mean “bandage.” Its meaning is uncertain, so choose it for its sound or historical associations rather than treating that gloss as definitive. Name history.
Thalassa means “sea” in Greek and is also the name of the sea’s personification in Greek mythology. It offers a nature-linked alternative to the shorter names above. Name history.
Thandiwe means “loving one” in Xhosa, Zulu, and Ndebele. The name’s meaning is specific to those languages; it may suit parents drawn to its sound and cultural roots. Name history.
Thisbe comes from an ancient Greek town name and is known through the story of Pyramus and Thisbe. It is a literary choice rather than a name with a simple one-word meaning. Name history.
Pretty middle names that start with Th
Several names on this list can work in the middle position as well as at the start of a full name. Try combinations such as Ava Thalia, Mae Theodora, Rose Thandiwe, or Claire Thora as sound checks, not as popularity picks. Say each combination with the surname and listen for repeated sounds or a rhythm that feels awkward to you.
If you mean a girl’s name with a “th” sound anywhere—not only at the beginning—consider names such as Althea, Tabitha, or Bethany. They contain “th,” but they do not start with those letters.
Choosing a Th name
Once you have a shortlist, compare the origins and meanings behind the names and consider whether their roots fit your family’s preferences. If heritage is part of your decision, explore the Greek, Hebrew, Norse, or other ancestral roots represented here.
FAQs
What are some nicknames for the name Theodora?
Possible short forms for Theodora include Thea and Dora. Behind the Name lists Dora as a diminutive, and Thea as a short form of Theodora, Dorothea, Theresa, and other names. These are options to try, not nicknames every family will use.
What is the connection between the name Thora and Norse mythology?
Thora is a modern form of Old Norse Þóra, which may be a feminine form of Þórr (Thor) or a shortened form of another name beginning with Þór. Its connection is to the name and Norse tradition, not a direct translation of “thunder goddess.”
What does the name Thirza mean?
Thirza is the Dutch form of the biblical name Tirzah. Behind the Name gives Tirzah’s Hebrew meaning as “favourable”; that is the supported meaning, rather than “delight” or “pleasantness.”
