The first name Cassiopeia
A girl’s name from Latin.
Pronounced /ˌkæs.i.əˈpiː.ə/ 5 syllables Female
Meaning and origin
Latin origin
From Latin Cassiopēia, from Ancient Greek Κασσιόπεια (Kassiópeia) or Κασσιόπη (Kassiópē).
From Wiktionary (CC BY-SA 4.0).
Popularity
Babies registered in England and Wales, 1996–2025
In 2025, 3 girls were named Cassiopeia, making it the 5,927th most popular girls’ name. It peaked in 2018, with 7 births (#3,178).
Office for National Statistics; years with fewer than three births are not published and show as zero. Compare Cassiopeia with other names.
Popularity in the United States
Babies named Cassiopeia at birth, 1880–2025
In 2025, 11 girls born in the United States were named Cassiopeia, the 8,977th most popular girls’ name that year. It was used most in 2022, when 18 were.
US Social Security Administration, from applications for a Social Security card. A name is only published for a year when at least five babies were given it, so quieter years show as zero.
Nicknames and spellings
Other spellings and forms
- Cassiope
More Latin girls’ names
Questions
- What does the name Cassiopeia mean?
- From Latin Cassiopēia, from Ancient Greek Κασσιόπεια (Kassiópeia) or Κασσιόπη (Kassiópē).
- What is the origin of the name Cassiopeia?
- From Latin Cassiopēia, from Ancient Greek Κασσιόπεια (Kassiópeia) or Κασσιόπη (Kassiópē).
- How popular is the name Cassiopeia?
- In 2025, 3 girls born in England and Wales were named Cassiopeia, ranking 5,927th. Its peak was 2018, with 7 births.
- Is Cassiopeia a boy's or a girl's name?
- Mostly a girl's name: 100% of the 391 US babies named Cassiopeia since 1880 were girls.
- When was Cassiopeia most popular?
- 2022 in the United States, when 18 babies were named Cassiopeia, its highest rank at 6,509th.
- How do you pronounce Cassiopeia?
- Cassiopeia is /ˌkæs.i.əˈpiː.ə/, 5 syllables.
- What are other spellings of Cassiopeia?
- Cassiope.