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The short answer
Rhea is a feminine name used in Greek Mythology and Roman Mythology. Behind the Name describes it this way: "Meaning unknown, perhaps related to ῥέω (rheo) meaning ‘to flow’ or ἔρα (era) meaning ‘ground’. In Greek mythology Rhea was a Titan, the wife of Cronus, and the mother of the Olympian gods Zeus, Poseidon, Hades, Hera, Demeter and Hestia." It ranked #639 for girls in the United States in 2025.
Meaning and etymology
According to Behind the Name, meaning unknown, perhaps related to ῥέω (rheo) meaning ‘to flow’ or ἔρα (era) meaning ‘ground’. In Greek mythology Rhea was a Titan, the wife of Cronus, and the mother of the Olympian gods Zeus, Poseidon, Hades, Hera, Demeter and Hestia. The entry lists its usage as Greek Mythology, Roman Mythology.
Editorial confidence: uncertain
Popularity
Rhea ranked #639 for girls in the United States in 2025. The figure comes from the Social Security Administration's national file for that year.
| Region | Year | Rank | Source |
|---|---|---|---|
| United States | 2025 | #639 | ssa-2025 |
If you like this name
Names that Behind the Name files under the same origin (Greek Mythology) and that sit near Rhea in the 2025 American rankings.
Similar by origin
Frequently asked questions
What does the name Rhea mean?
Rhea means "to flow", according to Behind the Name.
Is Rhea a popular name?
Rhea ranked #639 for girls in the United States in 2025. (Social Security Administration data).
Is Rhea a boy's or a girl's name?
In the 2025 SSA data Rhea appears in the girls' list; Behind the Name labels it feminine.
Sources
- Behind the Name: Meaning, origin and history of the name Rhea — supports meaning, usage, pronunciation, variants.
- U.S. Social Security Administration: Popular Baby Names — national data, year of birth 2025 — supports popularity.
